In the Book
In the Movie
Edward tells Bella about his nomadic and rebellious ways in Twilight.
He tells her before their wedding day.
Bella's dream has thee Volturi coming to kill her and her immortal child.
She sees Edward stained with blood instead.
Irina is not at the wedding.
She is but leaves quickly.
This doesn't happen.
There are speeches given at the wedding.
Bella finds out about her baby 17 days after the wedding.
It is only 14 days later.