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Guillermo Arriaga Jordán (born 13 March 1958) is a Mexican author, screenwriter, director and producer. Self-defined as “a hunter who works as a writer,” he authored Amores Perros, received a BAFTA Best Screenplay nomination for 21 Grams, and received the 2005 Cannes Best Screenplay Award for The Three Burials of Melquiades Estrada.

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