Question: When did the director of film Knall And Fall As Imposters die?
Sentence (from "Knall and Fall as Imposters"): Knall and Fall as Imposters (German: Knall und Fall als Hochstapler) is a 1952 Austrian-German comedy film directed by Ulrich Bettac and Hubert Marischka and starring Hans Richter, Rudolf Carl and Curd Jürgens.
Relevant evidence: Yes