Cryptography

His films frequently explore complex information systems, coded narratives, and the puzzle-like structure of encryption through non-linear storytelling in works like Memento and The Prestige.

He has directly tackled cryptography and hacking in films like The Girl with the Dragon Tattoo and Zodiac, while employing intricate visual codes and hidden meanings throughout his work.

His films explore surveillance, information warfare, and the breaking of codes as central themes, most notably in Collateral and Heat, where characters must decrypt hidden truths and rival intentions.