Question: Do director of film The Tsarevich (1933 Film) and director of film The Violet Of Potsdamer Platz have the same nationality?
Sentence (from "The Violet of Potsdamer Platz"): The Violet of Potsdamer Platz (German: Das Veilchen vom Potsdamer Platz) is a 1936 German drama film directed by Johann Alexander Hübler-Kahla and starring Rotraut Richter, Paul W. Krüger and Margarete Kupfer.
Relevant evidence: Yes