studied Philosophy, Film Studies, and American Studies in Zurich. From 1993 to 2000 he worked as a media journalist and film critic for professional journals and larger Swiss newspapers. From 2004 to 2011 he was C4-Professor for Theory and History of Visual Documentary Forms at the Ruhr-University Bochum. Since 2011 he holds the Chair for Film Studies at the Goethe-University Frankfurt. His research focus lies in the areas of film philosophy and the history of film and media theory as well as the investigation of non-canonical film formats, from science films to industry films and instructional films. He is currently working on a 15-volume edition on the history of film theory, which is being published by Amsterdam University Press under the title Film Theory in Media History.
studied Film and Media Studies in Bochum. He was a member of the collaborate research group on » Medien und kulturelle Kommunikation« (Cologne). Since 2008 he has been research assistant with the department of Media Studies at Amsterdam University.