Christopher Nolan is an English-American film director known for directing highly successful and critically acclaimed films in the early 21st century. His films have grossed over $4.2 billion worldwide and earned him 26 Oscar nominations, with 7 wins. Nolan frequently works with the same group of actors, including Christian Bale, Michael Caine, and Cillian Murphy. His films typically fall into the genres of psychological thrillers, action, adventure, and science fiction and are characterized by realistic settings, muted colors, and original scores.