Question: Which film has the director who is older than the other, Calling Bulldog Drummond or Convoy (1978 Film)? 
Sentence (from "Bulldog Drummond Escapes"): Bulldog Drummond Escapes is a 1937 American film directed by James P. Hogan starring Ray Milland as Capt. Hugh" Bulldog" Drummond.
Relevant evidence: No