I was a bit skeptical about this being good, but the cast is great, the plot works, visuals are amazing, and sets everything up for what i'm sure will be multiple sequels.
The movie gets huge points for cinematography and style. Each scene looks like it was pulled from a graphic novel. While I'm aware remaining "true" to the story was important, there were lots of scenes that could have been cut out to speed it up. It lost momentum and never seemed to end. May have been smarter to break it up into two movies.
Oh, and the guy from the Bad News Bears as Rorschach was great to watch.