Effective translation from page to screen.

To effectively translate the book you wouldn't need to change much, if anything at all. The novel already has i great story line and it keeps you wanting to read on. The movie should just be able to follow along with the book and it will create a already fascinating  story. In order for the movie to appeal to adults as well as children, it would need to use an intricate story line so that the audience is hooked on the movie the whole time. Action seems to play a big part of the book, so making those scenes more graphic and exciting would appeal more to older people.