Question: Which film has the director who is older than the other, Antardhan or Caligula... The Untold Story? 
Sentence (from "Joe D'Amato"): Among his best known erotic films are his five entries into the Black Emanuelle series of films starring Laura Gemser( 1976 – 1978) and his horror/ pornography crossover films" Erotic Nights of the Living Dead" and" Porno Holocaust"( both shot in Santo Domingo in 1979).
Relevant evidence: No