Question: When is the director of film The 4Th Floor (2003 Film) 's birthday?
Sentence (from "The 4th Floor (2003 film)"): Planta 4ª (English: The 4th Floor) is a 2003 Spanish film directed by Antonio Mercero and starring Juan José Ballesta, Alejandro Zafra, Gorka Moreno, Luis Ángel Priego, and Monti Castiñeiras.
Relevant evidence: Yes