While I will agree that most adaptations are not as good as the books they are based on, one that I think is actually better is Matilda. Some of this may just be bias as I do believe that I saw the movie first, but sometimes the actors chosen can have a big part in why a movie might be loved more or not. For example, I love Mara Wilson in the movie and I related to her Matilda much more than I did to Dahl's version of her. Plus there is enough comedy in this for Danny DeVito, as the butt of most jokes in the movie, to pull off spectacularly. Don't get me wrong, I love the book, I just think the movie with its choice of actors (that may not be the most accurate to the book in physical appearance) is a little bit better.