I just finished reading the books about a week ago, and I have way more respect for everyone involved in the film. Damn. That's a lot of stuff to condense into a movie, even though characters like Stephen, Kim, Envy, don't get the fleshing out they got in the book. That also applies to a lesser extent to Ramona. However, film-Scott was less of a jerk, and I think that was a good change. I'm also pretty impressed that they managed to put some scenes from the comic up on film almost exactly like they looked in the book.
I mean, I liked the movie before, but it's pretty insane with what they had to work with and how well they managed to get all the important parts in there. I really liked that while they didn't touch on subspace at all, those scenes were still present and could be accepted as some weird magical thing (I have no idea how to describe this).