PKD had an amazingly fertile imagination. I have read a lot of his books and and find that may of his ideas age very well and remain interesting far longer than most sci-fi writers.

I did see the Tom Cruise move many years before reading the story. It wasn't a great movie, but I think it is one of the exceptions to the rule that the book is always better than the movie. The story is a little terse and is also showing its age a little. In the film the pre-cognitive psychics at the heart of pre-crime are inoffensive and one is attractive. In the story they are monstrous drooling mental defectives disdained by everyone. It isn't that the story isn't good, its just harsher and less polished than the movie.

I also enjoyed the story 'the second variation,' which is a dystopian tale of humans building robots to kill humans, the robots getting too good at that, and eventually reaching such a high level of development that the robots try to kill each other.