I'm having the opposite problem right now with We Need To Talk About Kevin. I saw the film a while ago and was blown away by it. Dark, disturbing, honest and very real, it's everything I look for in a movie. I think it's probably the best film I've seen in several years. But I hadn't read the book before I saw it. Now the book is sitting in my to-be-read pile, and I'm not sure if I want to read it. I'm afraid reading the book will ruin the movie for me. I've never had this problem before.
I'm always prepared to be disappointed by cinematic renderings of books. Some are better than others, but in general, the book is always better. When I come across a film that really is as good, or better than the book, I take note. It's a short list....
The Sweet Hereafter (film by Atom Egoyan, book by Russell Banks).
Rumble Fish (film by Francis Ford Coppola, book by S E Hinton - interestingly, this is the only film of Hinton's books I do think is better. Coppola's film of The Outsiders doesn't do it for me.)
The Green Mile and The Shawshank Redemption (both by Frank Darabont from books by Stephen King)
And really, that's about it. Winter's Bone was as good as the book, but not better.
Can you think of any films that are better than the book?