German Expressionist films developed in Germany after World War 1 using unconventional styles to portray emotions during a difficult time. The films were unique due to limited resources and an isolated film industry. Expressionism influenced later horror and film noir genres with its dark moods and sets. Notable films include Metropolis and Nosferatu. While Expressionism declined in the late 1920s as filmmakers emigrated to Hollywood, its themes and styles continued to influence many famous directors and films thereafter.