Christopher Nolan is known for his dark, complex films that explore themes of identity, memory, obsession, and morality. This document provides an overview of Nolan's career and analyzes some of his most prominent films, including Memento, Insomnia, and The Dark Knight Trilogy. It examines the recurring elements in Nolan's style, such as nonlinear narratives and extensive use of flashbacks. The document also considers questions around Nolan's authorship and the themes his films explore.