Outland (1981)

Outland is a 1981 British science fiction thriller film written and directed by Peter Hyams and starring Sean Connery, Peter Boyle, and Frances Sternhagen.

Set on Jupiter's moon Io, it has been described as a space Western, and bears thematic resemblances to the 1952 film High Noon.

Desmond Ryan at The Philadelphia Inquirer called it: "A brilliant sci-fi Western. In many ways, Hyams has made a film that is more frightening than Alien, because he surmises that space will change us very little and the real monsters we are liable to encounter will be in the next space suit."

Outland has endured many comparisons to Ridley Scott's Alien (released two years earlier), most notably in its 'future realism' production design which reflects a dark, claustrophobic and isolated neo-industrial environment in deep space, and the portrayal of future 'megacorporations' as sinister and ruthless organisations pursuing profit at any cost, with their employees' lives being expendable.
https://en.wikipedia.org/wiki/Outland_(film)