"Memorial for Karl Liebknecht" by Käthe Kollwitz, 1921. Karl Liebknecht and Rosa Luxemburg were among the founders of the Berlin Spartakusbund (Spartacus League) that evolved into the Communist Party of Germany. On January 15, 1919, Liebknecht and Luxemburg were shot to death during the Spartacus Revolt on the pretext that they were attempting escape.
Metropolis was directed by Austrian Fritz Lang and released in 1926. It was based on the novel of the same name by Lang's wife, Thea von Harbou. The story of class conflict and mechanization was set in the city of the future. Notable for its fantastic imagery and sets, the film reflected similar class tensions in Weimar and a widespread fascination with the modern and futuristic.