User blog comment:SparkoMarko/Twilight/@comment-3119924-20121010222118/@comment-60.242.219.179-20121011045331

If they changed the book canon any more than they did, I'd imagine the director and screenwriter would have had SMeyer bearing down on them. Rather than deal with that nightmare, they obviously elected to keep Bella as the sociopathic cocktease she is in the book. You can't really blame them for being loyal to the source material...