Is there a book you really loved that was subsequently turned into a movie? Did it live up to your expectations? Why or why not?
I think the only books I've read before I saw the movie were the Lord of the Rings (the movie version sucked compared to the books, in my opinion), Watership Down (the movie was OK but the book was way better) and Mrs. Frisby and the Rats of N.I.M.H. (the movie was quite good, though very different from the book. The sequels (books and movie) sucked donkey dongs, and not in the good way).
I saw the BBC versions of The Lion, The Witch and the Wardrobe, Prince Caspian, The Voyage of the Dawn Treader and The Silver Chair first, then read the Narnia series, then saw the recent movies. The BBC production was quite good, but I actively disliked the movies.
There have been quite a few movies that I've seen first and then later read the book. The Jungle Book and Alice in Wonderland were much better as books. The Last Unicorn was excellent in both movie and book form, but that's to be expected since Peter S. Beagle wrote both. I enjoyed The Last Mimzy a lot more than I did the story it was based on, "Mimsy Were the Borogroves".