If you are a reader than you understand. I just want every detail and every unimportant event to be incorporated. Oh! He talked to this person when walking to work in the book? Well why isn't in the movie!?
However, I never go into a movie expecting it to be as good as the book. I know better. But one day I hope there is a movie that is as good as the book.
Fun Fact: The movies are never as good as the book because they have to change the movie by 30% or something so it's not considered copyright.