I have read all 4 books in the series, and Eclipse was my favorite. I was really looking forward to this movie for that reason, but I was also nervous about what they would include. I think the movie did a great job of following the storyline. It included information and details that were important to understand the characters, especially Rosalie and Jasper. The fight scenes were even better than I expected, and I liked that they gave the character of Riley a bigger part than the book. My only disappointment was the triangle between Bella, Edward, and Jacob. In the book, Bella is much more torn and upset at the end when she realizes she loves Jacob. I understand though how that doesn't really work for the flow of a "romance" movie. The book made me cry. The movie left me wanting a bit more. Overall though, I think it's the best movie so far.