This is definitely an acceptable adaption to the book

Rating: Null/10 (19 November 2011)

Excited, Yes! Satisfied, absolutely! Breaking Dawn, Part 1, is as faithful as can be to such an extensive text. The elements, grace and beauty are there; In the wedding, the honeymoon, the pregnancy and gory birth. We see the love that Edward and Bella share. We see the hurt that Jacob feels. We witness a life changing event in this fantasy world of vampires and werewolves. Very faithful to the emotional context of the book.
As I watched yesterday, I did notice a considerable amount of the Jacob, Seth and Leah missing, but I do understand that what's in writing can't always be translated to the screen, otherwise you would have a 5 hour movie, and nobody wants that. What is important is that all the essential elements were there; Werewolf telepathy, her parents and friends, a short sex scene.
This is a "chick flick" no doubt. If you are not into weddings and kissing and cuddling, this is not for you. This is a movie for "Twi-hards", guys that want to make their girls happy, and young women that could only wish that someone would love them like that!! I believe if you have not read the books and have just watched the previous 3 films you will get more of the same,(meaning pacing). I know some people will be disappointed with some of the missing scenes from the book, but overall, I was very happy when I left the theater. I will definitely see it again another 2 or 3 times.