I don't think the characters were developed enough.The relationship between Edward and Bella wasn't conveyed accurately. Their love was much stronger than the movie indicated.
I think Charlie, Carslile and Rob stole the show! I lost my breath when Carlisle first appeared. Peter Facinelli was PERFECT for the part.
The best part of the movie to me was Bella and Edward dancing at prom.
My greatest disappoinment was that the last line from Bella wasn't "I'm betting on Alice!" Other than that, great movie. Read the book before going to see though. You will better understand it if you do!