Isaac Asimov's "Foundation Trilogy" would be an excellent epic, if it could be done right. I was not too happy with the movie "I Robot" based on his short stories. I could see a Foundation movie as part drama/suspense and part sci-fi. There's not a lot of shooting or chasing, mostly a mystery type of movie, where the viewer is given pieces of the mystery, until the end where things are resolved(mostly) and you sit there and just admire the work of a true genius like Asimov.

I am skeptical that "Foundation" would be made the way Asimov would have liked. Hollywood would probably trash it pretty good.