I'm a huge Stephen King fan. His novels and short stories are wonderful but the movies made from those stories are usually pretty bad. The few exceptions include Cujo, Firestarter, The Dead Zone, The Shining, Stand By Me, The Green Mile and The Shawshank Redemption.
Another King fave is Cat's Eye (1985).
Three different stories all linked by a cat whose mission is to save a little girl. Great performances by James Woods, Alan King and Drew Barrymore. A perfect blend of horror and humor.