Crazy in Alabama. I loved the book, not only was the movie bad, but it screwed with my perspective of the story causing me to question my original opinion.
When I went to see Avatar one of the previews was for The Crazy Bones. I liked this book too. The preview looked good. It's directed by Peter Jackson. But I'm still skeptical.
On the other hand Princess Bride was WAY better as a movie and remains one of my favorites.
What about you?