A new video breaks down the mechanics of an effective twist ending.
There are few elements of storytelling that receive the attention of a great twist ending. This video essay from Wolfcrow takes a detailed look at the formula for an effective twist, and why a surprise ending shouldn't be confused with a twist ending.
The video includes spoilers for the following movies. You have been warned.
Citizen Kane
The Usual Suspects
Fight Club
Psycho
Planet of the Apes
Saw
The Sixth Sense
Unbreakable
The Village
The Visit
The Empire Strikes Back