9. The Ending - Total Recall (1990)
The ending to Paul Verhovens original Total Recall is among the most debated in sci-fi movie history. The reason for this being that its open to interpretation. Were given so many clues throughout the movie that sway us as to whether everything that has happened in the film is real, or if the films protagonist Douglas Quaid (Arnold Schwarzenegger) is still in his chair at Rekall and everything has just been a dream. The major mind-bending moment would, in my opinion, be at the very end. Right when Quaid kisses Melina after having defeated Cohaagen and given air to the inhabitants on Mars, the screen goes white and the credits roll. Its this frame of white before the credits thats the real mind-bender. Is this Quaid waking up from his dream? We may never know for sure, but it gives us geeks a lot to talk about.