Question: What nationality is the director of film The Tsarevich (1929 Film)?
Sentence (from "The Tsarevich (1929 film)"): The Tsarevich (German: Der Zarewitsch) is a 1929 German silent historical film directed by Jacob Fleck and Luise Fleck and starring Iván Petrovich, Marietta Millner and Albert Steinrück.
Relevant evidence: Yes