Great movie--but (as usual) the book was WAY better. The end of the book went past the point where the movie ended.
People who've seen the early Batman are talking Oscar for Heath Ledger. (Then again, that often happens with posthumous roles when it's not truly deserved.) But if I were to go into a theater this summer, that'd be the one I'd go see.
I'm definitely looking forward to Hellboy 2 as well.