Earning the Twist

A twist must be surprising yet inevitable — the audience should not see it coming, but after it lands, every previous scene should make more sense. The Sixth Sense achieves this by planting clues that are visible but emotionally invisible because the audience's assumptions filter them out.

Bad twists violate this principle by introducing information the audience could not have known. These twists feel like cheating because the filmmaker withheld evidence rather than hiding it in plain sight. The difference between a fair twist and a cheat is whether the clues existed.

Predestination, Arrival, and The Prestige are masterclasses in fair twists.