Alien (1979) is one of the best looking films I've ever seen

I rewatched Alien in 4k/HDR recently and the first thing that stood out is how amazing it looks. The dark scenes especially are unbelievable, the deep blacks and the perfect lighting really stand out, especially on OLED. If you haven't seen this in 4k yet I would highly recommend it.

Here's a 4k clip from the film to get an idea of what I mean. Watch in HDR if you can.