I've been a lifelong Sci-Fi and Fantasy junkie, spending hours in my teenage years with novels by Arthur C. Clarke, Robert A. Heinlein, Isaac Asimov, Ray Bradbury and Larry Niven.
Here are my favorite Sci-Fi films. I watch them again every few years and never grow tired of these timeless classics.
2001: A Space Odyssey
Close Encounters of the Third Kind
Back to the Future
Planet of the Apes
The Day the Earth Stood Still
The Princess Bride