Ever seen the movie Momento? I did, and its almost as awesome as it is confusing. Basically, its the story of a guy that sustained brain damage after seeing his wife being murdered. He suffers from short term memory loss and he uses notes and poloroid pictures to help himself figure out who he is and who killed his wife. The story is told in anti-chronological order so the audience knows exactly what the main character knows. It's smart, interesting and completely mind bending. I actually had to re-watch most of it to fully understand what the hell I just saw. As far as mind-benders go, this one was the hardest one to follow for me. But I totally recommend it.
