(Mulholland Drive and David Lynch (and Philip K. Dick)) Paycheck was based on a Philip K. Dick story.
In my opinion, Dick is the greatest sci-fi author of the 20th century. He’s the ideas man. You read his stories and can’t help but marvel at the ingenuity crammed into them.
His books are kind of rare nowadays (at least, where I live), and they aren’t all good, but I can heartily recommend them to any sci-fi afficianado.
His overarching theme seems to be the all-too-human struggle with identity. Couple this idea with thoughts of “what makes one human?”, “can a machine be human?”, “when our cognitive faculties are in some way impaired, physically or psychologically, are we still human?”, and so on. And yes, I have to agree, many of his books and short stories would make GREAT games.