The Cabinet of Dr. Caligari () is a 1920 German silent movie. It was directed by Robert Wiene. Conrad Veidt stars. It is a German Expressionist movie. It is one of the greatest horror movies of the silent era. The movie uses stylized sets with abstract, jagged buildings painted on canvas backdrops. These unique sets gave off a strong sense of theater. The actors used an unrealistic technique that exhibited jerky and dancelike movements. This movie introduced the "twist ending" in movies.