
This is where the movie and the book begin to defer.
The movie takes the character of Ronnie the sexual deviant into a more subdued manner, they don't acuse him of murder nor is he as repugnant as he is described in the book. Also the scene where he goes on a date is also thankfully excluded.
The truth is I really liked the movie and the ending was much more powerful, in the book the end was almost laughable. I mean you got the mom who has been a pseudo intellectual now playing Cinderella, the dad who has been for the most part a pretty face who was riding on his luck taking a turn for the better attempting to be a hero. Then you have the secondary characters the "perfect mom" riding in to finally break her own rules and quits becoming a conformist and the sexual deviant who just lost his mom becoming sympathetic to someone besides himself. The really is an asshole all throughout the book while in the movie you don't exactly forgive him or understand why he did what he did but you can sympathize with his character.
All in all the book was a quick read, but I would rather watch the movie.