In the Book
In the Movie
Jacob messes with Rosalie.
He doesn't.
Jacob tries to find his object of imprinting after realizing that Edward and Bella are happy about the pregnancy.
He doesn't look for the imprint.
Bella reveals the baby names a short while before going into labor.
She goes into labor immediately after revealing the name.
Rosalie tells Bella that Renesmee's name is unique and fitting.
Edwards says this.
The Cullens and the pack don't fight.
They fight after the baby is born. They stop when Jacob tells them that he has imprinted on the baby.