Question: What is the nationality of the screenwriter who wrote the 2013 psychological thriller film directed by Denis Villeneuve?
Sentence (from "Enemy (2013 film)"): Enemy is a 2013 psychological thriller film directed by Denis Villeneuve, produced by M.S. Faura and Niv Fichman and written by Javier Gullón, loosely adapted from José Saramago's 2002 novel "The Double".
Relevant evidence: Yes