Wochende (Weekend), 1930, is an experimental movie, directed by Walter Ruttmann, produced in Germany. Walter Ruttmann made avant-garde films - the Opus series, from 1922 to 1925, and a major documentary Berlin, Symphony of a City in 1929, showing the city's activities from early morning to midnight. Interested in how spectators perceive sound, on 15 May 1930 he premiered a film without pictures, Wochenende (Weekend). The audience take their seats, the lights go out, the sound is heard and all that can be seen is a BLANK screen !