In science fiction literature, there are few writers as legendary as Philip K. Dick. In his lifetime, he produced over a hundred short stories and thirty novels. Numerous writers and directors have looked to his visions of the future to shape the stories they've wanted to put on the big screen. Many of Dick's novellas and shorts have been adapted to film with varying degrees of success. Here's a few films that are based on stories from the sci-fi master Philip K. Dick.