Unreliable Narrator
Telling the story through a character you can't trust, because they are lying, mentally unwell or fooling themselves. At some point, you have to rethink what you were told.
Chinatown
The whole film is told from Gittes' point of view. You know what he knows, you discover what he discovers and you are wrong alongside him. His masculine confidence and professional expertise get taken apart piece by piece. When the investigation fails, it's his way of seeing the world that fails.
Amadeus
Salieri narrates from an asylum, decades after the events. He lived through them twisted by an envy that had become a sickness. His Mozart is brash, vulgar and always laughing, which is possibly accurate and certainly exaggerated. You have to read between the lines of Salieri's bitterness to glimpse the real genius he couldn't bear.

