Claim using highlight: (False):  Berlin: Die Sinfonie der Grostadt, a 65-minute experimental documentary by Walter Ruttmann (the most important German representative of abstract experimental film), was released in 1927.
Walter Ruttmann (28 December 1887  15 July 1941) was a German cinematographer and film director, and along with Hans Richter, Viking Eggeling and Oskar Fischinger was the most important German representative of abstract experimental film. Together with Erwin Piscator, he worked on the film Melody of the World (1929), though he is best remembered for Berlin: Die Sinfonie der Grostadt (Berlin: Symphony of a Metropolis, 1927). Berlin: Die Sinfonie der Grostadt (1927) in collaboration with Alberto Cavalcanti 
