Christopher Nolan, director of "Oppenheimer," "Inception," "Interstellar," and "The Dark Knight," imagines every movie is the last he'll make, leading him toward an ambitious plan for "The Odyssey."

Christopher Nolan, director of "Oppenheimer," "Inception," "Interstellar," and "The Dark Knight," imagines every movie is the last he'll make, leading him toward an ambitious plan for "The Odyssey."