Anyone read "The World According to Garp"? Loved the movie, never read the book.
I've both read it and watched it, both a very long time ago, but as far as I recall, the movie is extremely faithful to the book. All in all, I'd say they are about equally good, and very good indeed at that.
At least I remember thinking the book was strictly average when I read it many years ago as a teenager, but the movie was great.
Did you have the same opinion about Captain Shakespeare as I did?
I'll throw Stardust into the discussion. It's an excellent book, it really is, but the movie outdoes it in at least one very important aspect. In the book, Captain Shakespeare's involvement in the story takes up about a page and a half and is pretty unremarkable. Normally, I'm against inventing story elements of your own when making a movie out of a book, but what the movie does with the Captain Shakespeare character is nothing short of brilliant.