Alien has Ripley and the crew of the spaceship Nostromo set down on a desolate planet on company's orders to investigate a signal of unknown origin. There they find a derelict spacecraft and a life form that gestates inside a human host which they bring aboard the Nostromo against quarantine regulations. All seems well but at a meal before entering their stases the creature emerges and escapes their detectors, after growing into an adult the alien sets about killing the rest of the crew.
Alien - The Director's CutEdit
Theatrical version (117 min.)
Extended cut (seamlessly branched) (137 min.)
Star Beast (developing the story).
First Draft of Screenplay by Dan O'Bannon.
The Visualists (direction and design).
Ridleygrams (original thumbnails & notes).
Art of Alien (Cobb, Foss, Giger, Moebius).
Truckers in Space (casting).
Sigourney Weaver's screen test.
Commentary by Ridley Scott.
Cast portrait gallery.
Fear of the Unknown (Shepperton Studios, 1978).
The Darkest Reaches (Nostromo and alien planet).
The Sets of Alien.
The Eighth Passenger (creature design).
The Chestburster (creature design).
Future Tense (music and editing).
8 deleted scenes.
Gallery (photo archive).
A Nightmare Fulfilled (reaction to the film).
Poster explorations, special shoot, premiere.
Ridley Scott Introduction.
Fascinating Featurettes and Audio Commentary.
Dan O'Bannon First Draft Screenplay.
The Art of Alien - Featurette and Screentests.
Galleries and Deleted Scenes.