The book was better, but I think it will always be. The CGI was better in New Moon than Twilight. The story was a little slow in the beginning. Kirsten Stewart did not perform well in this movie. Her portrayal of Bella's depression looked more like she forgot how to blink. The introduction of the werewolves was good. Ashley Greene's Alice was amazing along with Robert Pattinson and Taylor Lautner
Usually with books that are made into movies there are details that will be glossed over or left out. There were a few major details that were left out like Carlisle explaining the Cullen's history and Bella's relationships with her Forks friends who were not vampires. As for the actors, I think that Robert Pattinson and Kellan Lutz did an amazing job as Edward and Emmet portrayed the characters wonderfully. Kristen Stewart's adaption of Bella Swan was not as Bella in the book as Kristen stumbled and stuttered her way through dialogue and at most times lacking emotions on her face as she spent the majority of the movie with a blank expression on her face.