This groundbreaking sci-fi masterpiece deals with elements of human evolution, technology, artificial intelligence, and extraterrestrial life in a series of encounters between humans and mysterious black monoliths that are apparently affecting human evolution. Starring Keir Dullea and Gary Lockwood. Directed by Stanley Kubrick. 1968. USA/UK. 160 min. Rated G.
If you haven't seen this on the big screen, I recommend it highly.