Books are, by default, superior to their movie counterparts. A written story has natural advantages over a film because it leaves room for imagination, and lets you picture what it is, instead of picturing it for you.
Take Cirque Du Freak, one of my favorite series from years ago. While reading all twelve books I continually pictured what I would imagine the characters, and the surrounding areas to look like. I dreamed of an ideal movie that would showcase my thoughts. All of a sudden, I hear from a friend that the trailer for the Cirque Du Freak Movie is out. I was excited, my dreams had come true. But, like all other books to movies, it ended up letting me down. As soon as I saw the actor who got picked for the main character's role, I immediately lost all hope of the movie being good. When I actually saw it, my initial thoughts were confirmed.
This is one of many examples of failed attempts at turning books into movies. The successes are few and far between. I can only think of one off the top of my head and that would be Lord of the Rings. But for the most part, books have all the advantages.
This is late, I forgot to do it repeatedly.