Christopher Nolan, writer and director of 'Oppenheimer', sits down with Stephen Colbert for a wide-ranging interview. They discuss filmmaking techniques, including shooting on celluloid film, using color in black and white scenes, and the process of fact-checking and script security. They also explore mesmerizing footage and the use of the shepherd tone in film music. Additionally, they talk about the use of solo violin in Nolan's films, his frustration with learning to play the cello, and discuss their guilt about being Fast and Furious fans.