Born 1942 in Berlin; studied theatre and art history at the University of Cologne; 1966-1988 joint films and performances with Wilhelm Hein and co-founder of 'XScreen' for sub-cultural events and programme work for various cinemas; numerous publications on avant-garde cinema; from 1990 professor of film and video at the Hochschule für Bildende Künste, Braunschweig (GER).