I haven't read much Stephen King, but as far as his movies go it seems like the less supernatural stuff the better. Stand By Me, Misery and Shawshank Redemption are probably the best SK adaptations ever. There are some, like The Green Mile, The Stand and the Shining that are good, in spite of the ghost story stuff, but most of the movies based on his supernatural stories are awful: It, Langoliers, Salem's Lot, Pet Semetary, Dreamcatcher, Thinner, Children of the Corn, etc.