Question: What nationality is the director of film Zorro, The Gay Blade?
Sentence (from "Zorro, The Gay Blade"): Via its dedication to director Rouben Mamoulian and opening prologue, the film establishes that it is a tongue-in-cheek sequel to 20th Century Fox's swashbuckling adventure film "The Mark of Zorro" (1940).
Relevant evidence: No