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.
The Dead Zone
The Shining
IT (1990)
Silver Bullet
Salem's Lot (1979)
The Shining
Carrie
Shawshank Redemption
It
Misery
The Shawshank Redemption (1994)
The Mist (2007)
The Green Mile (1999)
Stand by Me (1986)
Carrie (1976)
gerald's game
sleepwalkers
creepshow
christine
dead zone
and i wanna say that i feel like doctor sleep may become a bit of sleeper hit with me and work its way into the top on a re-watch. i didn't really like it all that much when i caught it in the theatre, but a few moments from it have really stayed with me. and because i generally like director mike flanagan's stuff so much, i have the feeling that it might become a grower.
misery
the dead zone
stand by me
the green mile
shawshank
Not including mini-series:
1. Firestarter
2. The Green Mile
3. Doctor Sleep
4. The Shawshank Redemption
5. The Dead Zone
Shawshank Redemption
Misery
The Mist
Stand By Me
The Dead Zone