Walter Ruttmann was a German cinematographer and film director, an important German abstract experimental film maker, along with Hans Richter, Viking Eggeling and Oskar Fischinger. He is best known for directing the semi-documentary 'city symphony' silent film, with orchestral score by Edmund Meisel, in 1927, Berlin: Symphony of a Metropolis. His audio montage Wochenende (Weekend) (1930) is considered a major contribution in the development of audio plays.
Walter Ruttman at recording Berlin-Movie, 1928
Experimental film or avant-garde cinema is a mode of filmmaking that rigorously re-evaluates cinematic conventions and explores non-narrative forms or alternatives to traditional narratives or methods of working. Many experimental films, particularly early ones, relate to arts in other disciplines: painting, dance, literature and poetry, or arise from research and development of new technical resources.
Poster for The Great Blondino, a 1960s counterculture film directed by Robert Nelson and William T. Wiley
Lithuanian artist Jonas Mekas, regarded as godfather of American avant-garde cinema