With M. Night Shyamalan's latest opus on the horizon, our thoughts are drifting to one of the best and worst things ever to happen to movies: the twist ending. True, the twist ending hit oversaturation in the early '00s, when it seemed like every film ended with a tacked-on revelation that all the characters were dead or the same person or characters in a giant videogame or something. But film history is so full of con games, double-crosses and startling last-minute revelations that it would be a shame to lose the twist ending entirely. Here's an affectionate guide to the 5 kinds of surprise endings. And yes, many films fit into more than one category. Call it a twist. -- Gwynne Watkins
#5 The Twilight Zone
In The Twilight Zone, something seems wrong or off-kilter for the entire film, but it's not entirely obvious what that thing is. When the twist is revealed, it creates a shift in perspective that can be easily explained in one sentence (such as the classic Twilight Zone example, "To Serve Man -- it's a cookbook!") Films that do The Twilight Zone well include The Others, Soylent Green and Swimming Pool. But when it's bad, it's very very bad; look no further than The Village, a cautionary tale for screenwriters everywhere.
#4 The Scooby Doo
This is the twist ending that reveals all prior events in the film to be part of an elaborate hoax perpetrated by the characters. And they would have gotten away with it, too! It's most commonly seen in con man movies -- The Game, Matchstick Men, The Sting, The Spanish Prisoner -- although it's cropped up to abysmal effect in "gotcha!" films like Basic and The Life of David Gale.
#3 The Donald Kaufman
Named for Charlie Kaufman's fictional screenwriter brother in Adaptation, The Donald Kaufman is the big twist that ostensibly explains everything, but in fact, makes no sense whatsoever. The Donald Kaufman most often takes the form of "They're both the same person!" or "It was all a dream!" Identity, High Tension and Femme Fatale are recent examples.
#2 The Awful Truth
The Awful Truth is the sucker punch of twist endings: a revelation that turns the main character into a tragic figure. Think Luke Skywalker screaming "That's not true! That's impossible!" in Empire Strikes Back, or the final shot of Rosebud in Citizen Kane. At best, it's dramatically satisfying (see Donnie Darko, Memento or Seven); at worst, it makes you want to slap the filmmaker for being a total sadist (see The Mist).
#1 The 20/20 Hindsight
The hardest kind of twist ending to pull off successfully, The 20/20 Hindsight requires the viewer to sit through an entire movie without realizing that a twist ending is coming. Then, after what seems like the film's resolution, the rug gets pulled out from under them. The Sixth Sense and The Usual Suspects are the classic examples; both have a fake-out ending that's quite satisfying, then a last-minute revolution that turns the whole film on its ear. Others include Fight Club, Planet of the Apes and Saw.