Lion Witch and the Wardrobe
I'm looking forward to the release of the Narnia movie, that whole series by C.S. Lewis were such great fairytales when I was a kid. I didn't get to see the Cartoon movie until sometime after reading all 7 books, and I rember being a little disapointed that they didn't capture all the details.
My Favourite book by far in the series was "The Magicians Nephew" it is the formal introduction to the world of Narnia it explains it's birth and how the first evil came into that world. If you havn't read that book yet, it only takes a couple hours tops, I highly recomend reading it before seeing the movie.