I was going to watch that, but after your comments, I think I will pass.
TCM ran both ALIEN & the film that may have inspired it a few nights ago. Ben M introduced both, as well as gave closing comments. 1st was
It! The Terror From Beyond Space (1958), which had the 1950s one piece spaceship with decks connected by staircases right in the middle, and was much wider on the inside than the outside.
So, a 2nd mission to Mars goes to capture the sole survivor of the 1st mission, who is assumed to have murdered the others. On the voyage home, because somebody left a hatch open for a few minutes, It! boards the 2nd ship & starts munching on its crew. They try various ways to 1st find it, and more than a few ways of killing it. most are killed in the attempts.
ALIEN (1979) Having watched IT! Monday night, & watching this Tuesday, it is easy to see the similarities. Granted, Alien makes IT! look like an Elementary school play by comparison, but much changed in films, etc., in the 21 years between these films. Alien adds several elements, including the company's rather self-centered policies, which place profit far above the lives of the employees.