German Expressionism originated as an artistic movement in early 20th century Germany that influenced cinema through its use of abstract and non-realistic sets and scenarios exploring themes of insanity and a hostile world. Key characteristics of Expressionist films included distorted perspectives and sets designed to reflect a protagonist's state of mind. Expressionism later influenced the film noir genre, featuring cynical characters in dark stories. Famous German Expressionist filmmakers like Fritz Lang, Robert Wiene, and their films like The Cabinet of Dr. Caligari and Metropolis had lasting impacts and influenced later directors such as Tim Burton.