Christopher Nolan is by far one of the most successful directors of the last 2 decades. With countless films, across many genres, Christopher Nolan seems to have an obsession with Time. Movies like Momento, The Dark Knight, Dunkirk, Tenet, Oppenheimer, and pretty much everything else in Nolan's filmography all have a running thread of time, and how it affects his story. But why is it that Christopher Nolan uses Time as such a key aspect of all his movies?