The experimental silent film is the most important work of the German filmmaker Walther Ruttmann (1887 - 1941). He documented the daytime of the metropolis Berlin of the late 1920s. At that time Germany had just recovered a little from the worst consequences of the first world war, the great economic crisis was still a few years away and Hitler was not yet a topic. Berlin was Germany's most cosmopolitan city. Together with Paris and London, Berlin was the cultural center of Europe.