Question: Which film has the director who is older than the other, The World Without A Mask or Supertex? 
Sentence (from "Harry Piel"): Hubert August Piel( 12 July 1892, in Düsseldorf – 27 March 1963, in Munich), known as Harry Piel, was a prolific German actor, film director, screenwriter and film producer who was involved in over 150 films.
Relevant evidence: Yes