Hercules Against the Sons of the Sun
Hercules Against the Sons of the Sun( also known as" Hercules Vs. the Sons of the Sun") is a 1964 Italian- Spanish peplum film written and directed by Osvaldo Civirani.
Elliot Silverstein
Elliot Silverstein( born August 3, 1927, in Boston, Massachusetts) is an American director, who is best known for being the director of the movie" Cat Ballou"( 1965).
Piero Pierotti
Piero Pierotti (1 January 1912 – 4 May 1970) was an Italian director, screenwriter and journalist.
Rome Against Rome
Rome Against Rome is a 1964 Italian" peplum" film directed by Giuseppe Vari.
Ben Palmer
Ben Palmer is a British film and television director who is known for being the director of" Bo' Selecta" and" The Inbetweeners".
Hercules Against the Barbarians
Hercules Against the Barbarians  is a 1964 Italian "peplum" film directed by Domenico Paolella.
Hercules Against the Mongols
Hercules Against the Mongols is a 1963 Italian peplum" film directed by Domenico Paolella.
Just This Once (film)
Just This Once is a 1952 American romantic comedy film directed by Don Weis and starring Peter Lawford, Janet Leigh and Lewis Stone.
The film's sets were designed by the art director James Basevi.
Don Weis
Don Weis( May 13, 1922 – July 26, 2000) was an American film and television director.
Hercules Against Rome
Hercules Against Rome is a 1964" peplum" film directed by Piero Pierotti.

Question: Which film has the director who is older than the other, Hercules Against Rome or Just This Once (Film)? 
Answer: Hercules Against Rome