Alien beat sheet

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How to read this Alien beat sheet

Deconstructing the Corporate-Driven Survival Horror Narrative

This Alien beat sheet is built from the Alien 1979 screenplay by Dan O’Bannon and the finished film, not from a template laid over the top of them. The film runs in four movements (Act One, Act Two-A, Act Two-B, Act Three), and each movement breaks into three or four sequences. Each sequence then gets a one-line summary, its minute markers, the structural beat it carries, and where the screenplay’s own words do the work, a line of dialogue.

Two threats run the story: a creature that cannot be killed without burning a hole through the ship, and a company that has already decided the crew is worth less than the creature. The Alien story structure braids them together, and this beat sheet tracks how, and why the film’s single most important decision happens at 37m, when Ripley calls quarantine and is overruled.

The beat names

The structural labels used below describe a job, not a brand. Opening Image and Final Image bookend the film. The Inciting Incident is the event the crew cannot ignore. First Escalation is the moment a character stops reacting and commits. The Act One Turn and Act Two Turn are the reversals that end each act, each followed by a Decision. First Test is the protagonist’s first real confrontation. The Midpoint flips the story’s direction. First Kill is the first death by the adult creature. Command Passes is the beat where authority moves to the protagonist. No Way Back is the irreversible act that locks in the ending, and the Climax answers the dramatic question.

The story in one page

The spine of the Alien story structure

Protagonist: Ripley, warrant officer aboard the commercial towing vessel Nostromo. Who she is: tough, brave, resourceful. Her flaw: callous. Outer goal: investigate the transmission, then kill the alien. Inner goal: stay alive. Opposition: the alien, and the Weyland-Yutani Corporation. Themes: survival and corporate greed. Dramatic question: will Ripley survive? Ending: Ripley kills the alien.

That is the whole Alien story structure in nine fields. Every sequence below is one of these fields under pressure, and the act synopses at the end of each act show how the screenplay pays them off.

Subtraction as structure

Manifest of seven: the Alien beat sheet as subtraction

At 3m the screen reads crew: seven, and that number is the Alien story structure in miniature. At 114m Ripley dictates a log naming six dead. Between those two numbers the screenplay works like a manifest being crossed off, and the order matters: each name removed takes a piece of the ship’s authority with it, until the only judgment left is the one that was overruled at 37m. Read down the list and the film’s argument reads itself.

Act one, 1m to 31m

Act One: waking the Nostromo

Sequence 1: the wake-up (1m to 12m)

Opening Image, 1m to 2m. Deep space; a star backlights the dark side of a planet. At 3m the Nostromo crosses frame with its superimposed manifest: commercial towing vehicle, crew of seven, a refinery processing twenty million tons of ore, course set for Earth. The camera floats through a ship that looks lifeless until the computer boots at 5m and the crew wakes at 7m.

At 8m, over the first meal, engineers Brett and Parker ask Captain Dallas for a bigger share. Dallas tells them they will get what the contract says. Dallas consults Mother at 9m; at 10m the crew works their posts and cannot find Earth.

Inciting Incident, 12m. Dallas tells the crew they are only halfway home. Mother interrupted the voyage because she intercepted a transmission of unknown origin, and she woke them to check it out.

Sequence 2: the descent (13m to 25m)

Meanwhile, at 13m Parker argues for more money if they are going to investigate; Ash tells him the contract obliges every crew member to assist or forfeit all shares. Nobody can identify the signal at 14m, but Lambert locates it on a nearby planetoid, LV-426. From 14m to 18m the Nostromo detaches from the refinery, takes damage on descent, and sets down in a storm.

Then, at 21m, Dallas, Kane, and Lambert leave the ship to walk to the signal. Ripley, Brett, and Parker stay to make repairs while Ash monitors the walk. At 23m the engineers press Ripley about their shares; she tells them they will be paid what the law requires.

First Escalation, 24m. Ripley asks Ash about the transmission, learns Mother has not identified it, and sits at a console to decode it herself. This is the first time anyone on the ship stops complying and starts investigating. At 25m the storm lifts and the away team sees where the signal comes from: a spacecraft rising out of the rock, plainly not built by humans.

Sequence 3: the derelict (26m to 31m)

First, communications break up at 26m. Lambert wants to leave; Kane insists they go on. They enter the ship at 27m and Ash loses their signal. Chestburster setup, 29m: they find a giant fossilized alien with its ribs burst outward. The image is a promise the screenplay keeps at 56m.

Act One Turn, 31m. Ripley reports that Mother has deciphered part of the transmission. It is not an S.O.S. It may be a warning. Decision, 31m: Ripley wants to go out and warn the away team; Ash talks her out of it. The pattern of the whole film is set in one exchange: Ripley reads the evidence correctly, and Ash steers her off it.

Act two-A, 32m to 50m

Act Two-A: the facehugger

Sequence 4: the egg and the hatch (32m to 37m)

First, at 32m the away team lowers Kane into a cargo hold full of eggs. At 35m he sees movement inside one, reports signs of organic life, and leans in. A creature bursts out, melts through his faceplate, and fastens to his face.

First Test, 35m to 37m. Dallas and Lambert haul Kane back through the storm and radio that an organism has attached itself to him. Ripley invokes quarantine: twenty-four hours for decontamination. Dallas says Kane could be dead in twenty-four hours. Lambert tells her to open the hatch. Ripley refuses, and says the thing the film will spend the next hour proving.

At 37m Ash breaks protocol and opens the hatch. The overrule is the hinge of the screenplay. The crew reads it as mercy; the film reads it as the company’s first move.

Sequence 5: acid for blood (37m to 50m)

Back in the medical bay, Dallas and Ash remove Kane’s helmet and find the creature gripping his face, tail wrapped around his throat. A scan at 39m shows part of its body down his throat; Ash suggests it may be feeding him oxygen. Dallas wants it off even if the removal kills Kane. At 40m Dallas cuts into one of its legs and the wound bleeds an acid that burns through the floor and down two decks. Parker names the problem: a defense mechanism so good you do not dare kill it.

At 44m Ripley questions Ash and learns the creature sheds its cells and keeps rebuilding its defenses. She tells him he broke quarantine law and may have risked every life on board for one. At 47m Ash calls Dallas to the infirmary: Kane is conscious, the creature is off his face, and Ripley finds it dead. The sequence ends on a relief the midpoint is about to revoke.

Midpoint, 50m to 57m

The midpoint: chestburster

Sequence 6: the last meal (50m to 57m)

Meanwhile, at 50m Ash inspects the dead creature. Ripley argues for jettisoning it; Dallas sides with Ash and keeps the specimen for study. At 51m Ripley presses Dallas on having it aboard and he tells her company policy says preserve it. The same minute, Dallas elects to lift off before the ship is fully repaired. At 53m the Nostromo leaves LV-426 for the refinery.

At 55m Kane is up, talking, apparently himself. The crew decides on one meal before stasis. Midpoint and chestburster payoff, 56m to 57m. Kane cramps, then seizes. The crew tries to help. A small alien bursts out of his chest, lands among the dishes, and is gone before anyone moves. Kane is dead in his chair.

Everything before this minute is a job the crew wants to finish. Everything after it, by contrast, is a hunt they did not sign up for. The goal flips from quarantine defense to killing something loose in the ship, and the beat lands at almost exactly the film’s halfway mark.

Act two-B, 58m to 68m

Act Two-B: the hunt

Sequence 7: two teams and a cat (58m to 68m)

At 58m the crew commits Kane’s body to space. Then, at 59m, they split into two teams to catch the alien: Ripley, Brett, and Parker; Dallas, Lambert, and Ash. At 63m Ripley’s team gets a reading and a scare, and the reading is Jones the cat. Brett goes after the cat alone at 65m and finds a shed skin.

First Kill, 68m. Brett finds the cat in the undercarriage room. The alien, now seven feet tall, hangs above him, reaches down, and takes him up into the dark. The plan was built for something the size of a fist. That plan is over.

Act two-B, 69m to 88m

Ripley takes command

Sequence 8: Dallas in the ducts (69m to 76m)

Afterward, at 69m, the crew regroups. Ripley and Parker report the creature is bigger and moving through the air ducts. Ash notes the one thing they do not know about it is temperature, and that most animals retreat from fire. Dallas has Parker build flamethrowers and lays out the plan: drive it through the duct to the main airlock and blow it into space. At 72m Mother has nothing useful to add, and Dallas climbs into the shaft himself.

Lambert tracks the alien at 74m and calls its position; however, at 75m she loses it and Dallas finds signs it has been where he is standing. At 76m, unsure which way it went, he drops into a lower shaft and it is waiting.

Sequence 9: Special Order 937 (77m to 84m)

Command Passes, 77m. Ripley, now senior officer, orders the crew to continue Dallas’s plan: the shuttle will not carry four. The crew agrees. At 78m she asks Ash for anything at all and gets nothing; he and Mother need more time. She tells him she will ask Mother herself, now that she has access.

Then, at 80m, she finds Special Order 937, marked for the science officer’s eyes only, and overrides it. Mother’s answer: the Nostromo was rerouted on purpose; the priority is returning the organism for analysis; all other considerations are secondary; crew expendable.

Ash is already behind her. As a result, at 81m she strikes him and runs to warn Lambert and Parker; he cuts her communications and blocks the exits. At 82m she sees a milky fluid running from the scuffle wound on his forehead. He attacks and tries to suffocate her. Lambert and Parker arrive and cannot move him until Parker swings a fire extinguisher. At 84m Ash’s head comes off and the body keeps coming; Lambert stops it with an electrical charge.

Sequence 10: the perfect organism (86m to 88m)

Act Two Turn, 86m to 87m. The three survivors reconnect Ash’s head and question it. His orders were to reroute to the signal, investigate a hostile life form, and bring it back. He did not warn them because they might not have gone. Their lives were expendable; it was not personal. The transmission, he confirms, was a warning, and specific: the derelict’s crew met the same spores and set the beacon before they died. He tells them the creature cannot be killed and their chances are nil.

Decision, 88m. Ripley chooses to arm the Nostromo’s self-destruct and escape with Parker and Lambert on the shuttle Narcissus. Parker burns what is left of Ash with the flamethrower. The company’s man is gone; the company’s creature is still aboard.

Act three, 89m to 114m

Act Three: countdown and last stand

Sequence 11: the coolant run (89m to 95m)

Meanwhile, at 89m, Ripley sends Lambert and Parker for coolant while she readies the Narcissus; they agree to meet at the shuttle in seven minutes and arm the self-destruct. She hears the cat, and from 91m she searches for Jones, takes one more scare, and finds him. At 93m Lambert, loading the last of the coolant, freezes. Ripley hears the commotion over the radio.

The alien stands between Lambert and Parker. Parker cannot use the flamethrower without burning Lambert, so at 94m he goes at it by hand; it wraps him in its tail and kills him. In the same minute, Ripley listens to Lambert die. At 95m she finds both bodies and runs for the shuttle.

Sequence 12: no way back (96m to 104m)

No Way Back, 96m to 97m. Ripley arms the self-destruct: ten minutes to detonation, five minutes to cancel. At 98m the alien blocks her route to the shuttle. With the override window still open she abandons the cat and runs back to save the ship. At 99m she reaches the override too late; the ship will blow in five minutes.

After that, from 100m she works her way back toward the shuttle with the clock running, grabs the cat at 102m, and at 103m gets inside with a minute left. She launches seconds ahead of the blast. At 104m the Nostromo and the refinery go up behind her.

Sequence 13: the stowaway (105m to 113m)

By 105m Ripley has come down from the run and lets Jones out of his carrier; at 106m she puts him in a stasis chamber. Then, at 107m, preparing her own, she finds the alien folded into the shuttle’s machinery. From 108m she hides in a locker, gets into a spacesuit, and arms herself with a grappling gun.

Then, at 111m, she steps out, straps into the control chair, and starts decompressing the cabin. The alien comes out of hiding. At 112m, seconds before it can strike, she opens the door and the decompression blows it out, though it catches the frame on the way. She fires the grappling gun; the door slams on the line and the creature uses it to pull itself back toward the hull. Climax, 113m. As it climbs into the engine, she fires both engines and burns it out of the sky.

Sequence 14: the log (114m)

In the Alien 1979 screenplay’s last page, Ripley records a final report: the other six are dead, the cargo and the ship destroyed, the frontier about six weeks out. She signs off as the last survivor of the Nostromo. Final Image, 114m: Ripley asleep in stasis, the cat beside her. The film began with seven sleepers and a ship; it ends with one sleeper and a lifeboat.

The commentary track

What Ridley Scott says about the Alien story structure

Scott’s commentary track, recorded for the 1999 DVD, is mostly about how the film was made, and it says almost nothing about the Alien 1979 script as a document. Read against the beat sheet, it is also a record of which structural choices were fought over, and it confirms several of them from the director’s chair.

The first forty-five minutes

Scott recalls colleagues and the studio objecting that nothing happens for forty-five minutes, and says that was the intention: the opening exists to show the world these space workers live in, and Jerry Goldsmith’s score carries the tension so the audience is wound tight by the time anything does happen. He describes the crew as written with a class system already in place, below decks and upper deck, and says he deliberately mixed the first meal so the overlapping talk would make viewers uneasy. He also says he designed the characters not to be comrades, and that Ripley’s only real relationship on the ship may be the cat, which is why her going back for Jones reads as character rather than plot convenience.

The quarantine call

On the hatch scene, Scott says Ripley is an officer going by the book, countermanding her own captain, and that she is right to; had the crew held to quarantine, there would have been no problem. He mentions a trimmed scene in which Lambert confronts Ripley afterward over trying to keep them outside. He also flags the acid-blood scene as the point where the crew begins to work together for the first time, and describes the burn-through as a quiet way of establishing that the creature is effectively indestructible. On casting, he calls making the hero a heroine a master stroke, because the audience expects Weaver to be the first to die.

The takeover scene

Scott staged Brett’s death differently at one point, with Ripley and Parker rushing in; Scott says it was more elegant to let him die alone with the cat as the only witness. The scene after Dallas’s death he describes as a proving scene: Ripley is now next in command, Ash and Parker are visibly weighing whether to trust her judgment, and Scott says he told Yaphet Kotto to keep interrupting Weaver so she would have to establish authority on camera. Scott also cut a scene of Ripley comforting a terrified Lambert from the same stretch. He also describes a planned sequence, dropped for cost, in which the alien is lured into an airlock, jams in the door, burns through it, and tears loose, which would have paid off Dallas’s plan directly.

The fourth act

Scott says the Ash interrogation speech was still being written during photography, with David Giler working on it up to the morning it was shot. On the ending, he recalls a fight over whether the film should stop when Ripley reaches the shuttle; his position was that the rhythm was wrong and the alien had to be in the craft, an ending on an ending that he likens to a fourth act. He notes the last stretch of the film runs with almost no dialogue beyond Ripley talking to herself, and that he chose a harpoon over a gun because a gun would have been too easy. On the company, he says the idea he was proudest of was a corporation planting a humanoid aboard to protect its interests, a thread about companies outgrowing governments that he carried into Blade Runner.

The rewrite, secondhand

In a recorded conversation, Quentin Tarantino recounts what Walter Hill told him about the script’s path: O’Bannon and Shusett wrote it with Roger Corman’s company in mind; Hill and Giler’s rewrite added the class tension aboard the ship and made Ripley a woman; Fox went ahead partly because it had an effects operation standing at Pinewood; and several directors passed before Scott. This is Tarantino relaying Hill, so it is secondhand, but it lines up with what Scott says about the class system being in the script he shot.

Translation key

Alien beat sheet crosswalk: the fifteen beats

Many writers learn structure first through the fifteen-beat Save the Cat template, and most Alien beat sheet pages stop there. The tables below map the same events onto that grid so the two vocabularies can be read side by side. The sequence breakdown above is the primary reading; this is the translation key.

Act One: Setup (Beats 1-5)

Five beats cover the same ground as sequences 1 to 3 above.

Act Two, Part A: Action and Midpoint (Beats 6-10)

Beats 6 to 10 run from the hatch through Brett’s death; this grid folds Act Two-B’s first sequence into its second act.

Act Two, Part B: Despair and Payoff (Beats 11-13)

Three beats here map to sequences 8 to 10.

Act Three: Resolution (Beats 14-15)

Two beats close the grid; the template treats the whole third act as one climax.

For writers

Why The ALIEN Beat Sheet is Essential for Writers.

Mastering the Dual-Threat Structure of Horror-Thriller

Alien manages two distinct, linked antagonists. One is the visceral, external threat of the creature. The other is the intellectual, internal threat of the corporation’s betrayal, carried by the android Ash. By placing the discovery of Special Order 937 at 80m, inside the stretch between Dallas’s death and the decision to self-destruct, the screenplay makes the corporate motive raise the stakes of the physical horror directly, so the final confrontation is personal and thematic at once.

A Universal Solution for Genre Pacing and Escalation

The Alien beat sheet shows how to escalate a threat on a schedule. First, the midpoint at 56m delivers the creature’s first form; then the hunt that follows escalates it to a seven-foot adult that kills at 68m. In other words, the threat moves from an unknown organism to a full-size hunter in under twenty minutes of screen time, and the crew’s tools never catch up. That is the lesson for pacing: a static threat leaks tension, and each sequence should raise the pressure on the protagonist.

The Value of Hitting Critical Emotional Peaks

An Alien beat sheet keeps the emotional peaks where the audience can feel them. Dallas’s death at 76m is not just a plot point; it strips the protagonist of her last support and drops the audience into despair. The decision at 88m gives her a single clear objective, self-destruction and escape, that drives the whole third act. The beats are not only a timing device. Every major plot point should deliver a corresponding shift for the protagonist and the audience.

FAQ

Alien beat sheet questions

The crew and the company

The Alien 1979 script and its structure

Go deeper

The Deep SHT series

This Alien beat sheet is the short form. The Deep SHT books take one film at a time, at book length, built the same way: screenplay drafts, the finished cut, and the commentary tracks, read against each other. Join the launch list to hear when the next one ships.