Synopsis

After a space merchant vessel perceives an unknown transmission as distress call, their landing on the source planet finds one of the crew attacked by a mysterious lifeform. Continuing their journey back to Earth with the attacked crew having recovered and the critter deceased, they soon realize that its life cycle has merely begun.
Ridley Scott
Tom Skerritt, Sigourney Weaver, Veronica Cartwright, Harry Dean Stanton
25 May 1979 (USA, UK)
Won 1 Oscar. Another 16 wins & 19 nominations.tt0078748 , Android, Self-destruction, Countdown, Space Marine, Space Suit, Beheading, Dying And Death, Dystopia, Biology, Spaceship, Alien, Female Protagonist, Outer Space, Cowardliness, Parasite, H. R. Giger