Your top 5 Stephen King films?
1. Christine
2. Sleepwalkers
3. 1408
4. Stand by me
5. Storm of the century
Personally, I think King's at his best when his films are serious in tone, as in Christine/Sleepwalkers.
In 1408 and Stand by me, there's a tongue-in-cheek approach (obviously less effective, but it worked for these two).
Storm of the century clearly works if you're in the mood for a 3-hour film.