"Film als historische Quelle [The Film as a Historical Source]", lecture by A. L. Tiewsim in the colloquium "Münsteraner Gespräche zu Geschichtswissenschaft, was nun [Münster Talks on Historical Science, What Now]?" at the History Department of the University of Münster on 1 July 2014 (together with L. Bartholomei und T. Temming).