Alien (1979)

Trivia: When the producers took on the movie they changed all of the characters names as they didn't like them. Dallas was going to be called Standard and Lambert was called Melkonis.

Trivia: Writer Dan O'Bannon's idea for Alien evolved from a comedy B movie he'd written a few years earlier called Dark Star which featured an alien that was a beach ball. O'Bannon said that he was unhappy with the silly alien in "Dark Star" and deliberately steered away from potentially comic elements while writing "Alien."

Trivia: When the Android is attacking Officer Ripley, the first scene Ripley was sprayed with glycerine to give the idea they were sweating. However, the later scenes of the fight this glycerine was omitted because she found out she was allergic to it.

Chad_Bronson

Trivia: For the wide shots where we see Kane and Co. walking around outside the Nostromo, Ridley Scott used children (two of which were his own) in special child sized space suits so the sets would appear bigger in comparison to the people on screen. He used the same tactic again when they discover the fossilised space jockey on the alien ship.

Trivia: Jon Finch was originally cast to play the part of Kane, but had to drop out on the first day of filming due to a severe attack of diabetes.

Trivia: For the landing sequence the crew rigged paint mixers beneath the seats on the bridge set so that they would vibrate to simulate turbulence. One effects supervisor noted wryly that when they turned them on Sigourney Weaver would get "a little smile on her face."

TonyPH

Trivia: The chestbursting scene was filmed in one take with four cameras.

hifijohn

Trivia: As well as being allergic to glycerine, Sigourney Weaver was allergic to Jones. She didn't know that she was allergic to cats and thought that Ridley Scott might have her replaced, however he didn't mind as long as she didn't.