Question: Which film was released first, El Retorno De Walpurgis or Stranger On The Third Floor?
Sentence (from "El Retorno de Walpurgis"): El Retorno de Walpurgis( The Return of Walpurgis), also known as Curse of the Devil and The Black Harvest of Countess Dracula, is a 1973 Mexican- Spanish horror film that is the seventh in a series about the werewolf Count Waldemar Daninsky, played by Paul Naschy.
Relevant evidence: Yes