Oh gee...there is only one list....Mine!
Forbidden Planet
The Day the Earth Stood Still
The Thing From Another World
War of the Worlds
The Time Machine
This Island Earth
When Worlds Collide
2001: A Space Odyssey
Incredible Shrinking Man
Them
Metropolis
....newer films
Blade Runner
Alien
Aliens
The Thing (Carpenter)
The Terminator
Terminator 2
The Matrix
Predator
Avatar
Star Wars (the 3 good ones)
Star Trek II: The Wrath of Ricardo