This movie is phenomenal. The character interaction is much more real feeling and there are so many hilarious moments that go right along with the serious, well-directed ones. Yes, there are some changes from the book, and that is something that has upset me greatly in the previous movies. However, I don't think they'll have a problem putting in some of the things they left out in this movie since they'll be able to fit so much into the 2 halves of DH.
Definitely loved it and will be seeing it many more times!!