6. The Mist (2007)
The Mist is a film so well-executed by Frank Darabont - who has previously directed two other Stephen King adaptations - that King himself even said that the film's stunning twist ending far outdid his own novella ending. Even outside of its fantastic ending, The Mist is a superbly tense, wonderfully shot and powerfully acted B-movie horror flick, as a fleet of computer-generated monsters attack a small town, pervading through a mysterious mist while the town's citizens band together to try and escape the madness. What Darabont gets so right is by introducing an unfamiliar and unique element to the horror film; a risky but successful political comment about how the film's characters seemingly lose faith in the authorities, and become lost in their own sense of nihilism and defeatism. This all ties into a horrifying ending that is likely to make many laugh simply because it's so disturbingly ironic. I still fondly recall the moment my jaw dropped as the reveal came along; it simply has to be seen to be believe, and adds a further dimension of terror to an already extremely accomplished film.