Christopher Nolan's film are diverse but often feature complex, non-linear narratives that explore themes like time, memory, reality, and the nature of existence. His films often blend genres and use ambitious concepts, such as a spy using time-inversion technology in Tenet, a heist to steal an idea from someone's subconscious in Inception, the life of the physicist who developed the atomic bomb in Oppenheimer, or a team of scientists searching for a new home for humanity in Interstellar.