2. Alien (1979)
The original film is even more outstanding when you consider all the tropes it manages to avoids. Rather than a team of scientists or plucky explorers, it’s a group of blue-collar workers, space truckers, who run into the “starbeast”. A diverse crew (in 1979!) where it’s immediately clear who will survive and who won’t. It subverts the expectations beautifully with Tom Skerrit’s heroic Captain Dallas exiting the film early on and background character Ripley ending up the sole human survivor of the Nostromo aboard the Narcissus (along with Jonesy the cat and that pesky Xeno). A world/spacecraft that takes the lived-in tech of Star Wars and applies it to regular working Joe’s.
It’s a film that’s often been mimicked but never bettered.
The haunted house in space, an original horror classic. and home to the best dining room scenes EVER.