Károly Makk and Barry Mahon both held this title in films?
Barry Mahon Barry Mahon, born Jackson Barrett Mahon (February 5, 1921, Bakersfield, California – December 4, 1999, Las Vegas, Nevada), was an American film director, cinematographer and producer.
Professor Mamlock (1961 film) Professor Mamlock is an East German drama film. It was released in 1961.