So many books are getting turned into movies that it's not uncommon to read your favorite book and then go see the movie version, but how common is it to see the movie and then go read the book? Just the other day I saw a preview for I Am Number Four and I went to the bookstore to pick up the book because I wanted to read it before seeing the movie. I know of multiple movie previews (I Am Number Four, Percy Jackson, etc) that made me go and read the book before I saw the movie, but how many movies have I watched first and then went on to read the book? I can think of three...Romeo and Juliet, A Walk to Remember, and Misery?
What about you? Which movies have you seen before you read the books? And which format did you like better?