Even if you don't like horror movies, you've probably been unknowingly subjected to a film or two that managed to scare you. Maybe you were just a child who was hoping to see more of Dorothy Gale's adventures and you popped in Return to Oz, unaware that the much-darker sequel included shock therapy and a headless witch, or maybe you turned on a documentary about Scientology, unaware of just how disturbing it would be.
