The Vow recap!

First of all between reading the book first and seeing the movie second is competle different about how the movie happen and what actually happen in real life.
First of all, I must say that i love the book and it's inspiring and loving about how a man could put his love for his wife and never give up on their marriage. It's shows us all that there should not be divorces which is my believe that there should not be any divorces.
In the Movie it shows the man giving his life to his wife and wants to do what is best for her. What confused me is that how they played the relationship with the parents/in-laws