Christopher Nolan is the most important director working in mainstream cinema today — a filmmaker who has consistently delivered intellectually ambitious blockbusters that challenge audiences while delivering extraordinary spectacle. The Dark Knight is his most acclaimed film and frequently cited as the greatest superhero movie ever made. Inception redefined what a summer blockbuster could be — a dream heist movie built on a foundation of genuine philosophical complexity. Interstellar divided critics but delivered emotional devastation that few science fiction films have matched. Oppenheimer won him his first Academy Award for Best Director and is being discussed as one of the greatest films of the 21st century. Memento announced him as a singular talent with its backwards narrative structure. Which Nolan film is truly his greatest?