Friedrich Christian Anton Lang (; December 5, 1890 - August 2, 1976), better known as Fritz Lang , was an Austrian film director, screenwriter, and producer, who worked in Germany and later the United States. One of the best-known émigrés from Germany's school of Expressionism, he was dubbed the "Master of Darkness" by the British Film Institute. He has been cited as one of the most influential filmmakers of all time.

Lang's