In this task, you are given a context paragraph, a question based on that and corresponding answer of a question. Your task is to generate supporting fact/knowledge from context paragraph which helps in answering a given question.
Q: Frederic Zelnik (17 May 1885 - 29 November 1950) was one of the most important producers-directors of the German silent cinema. He also appeared on screen as an actor. Question: Which film director also appeared on screen as an actor, Dziga Vertov or Frederic Zelnik? Answer: Frederic Zelnik
A:
Frederic Zelnik 17 May 1885 29 November 1950 was one of the most important producersdirectors of the German silent cinema.