Book turned movie and completely desecrated.
I'm going to have to go with Twilight. I was just so disappointed after reading the book and seeing that movie. I don't know what it is because I like the rest of the movies, but Twilight is just so.. meh. The book is great though!
Twilight for sure. I really liked the books, but the movies just don't do it for me. I'll be a little mean here and blame it on Kirsten Stewart, I just really don't like her acting.