The False Prince
1927
The False Prince is a 1927 German silent film directed by Heinz Paul and starring Harry Domela, Ekkehard Arendt and John Mylong. It was shot at the Johannisthal Studios in Berlin. The film's art direction was by Karl Machus. The film was based on Domela's book recounting his own adventures in post-First World War Germany when he briefly masqueraded as Prince. Wikipedia