1925 Born in Berlin, joined as production manager for film and worked in that capacity, among other things for Gerhard Lamprecht's elaborate history paintings arc Old Fritz, the early Conrad Veidt-talkies The man who committed the murder and I and the Empress, the musical blockbuster Walzerkrieg from the hand of Ludwig Berger, Reinhold Schünzel's divine comedy Amphitryon and most recently, in 1936, directed by Johannes Meyer, again for a cinematic homage to the Prussian King Frederick the Great, Fridericus.
After the war, Lehmann acted for the East German DEFA as joint manager of the dubbing division of the old Tobis.
His work as a production manager in 1947 he put away for a variety of West German firms, 1952-1955 exclusively for Carlton-film of the Munich-based producer Günther Stapenhorst.
He also occupied an official post, he was sometimes the first Chairperson of the Association of German production manager eV.
He is not to be confused with another Otto Lehmann, who briefly worked during the Second World War, as an actor in Swiss films.