Guillermo Arriaga Jordán is a Mexican novelist, screenwriter, director and producer. Self-defined as "a hunter who works as a writer," he is best known for his Academy Award for Best Original Screenplay and BAFTA Award for Best Original Screenplay nominations for Babel and his screenplay for The Three Burials of Melquiades Estrada, which received the 2005 Cannes Best Screenplay Award.

The 58th Cannes Film Festival started on 11 May and ran until 22 May 2005. Twenty movies from 13 countries were selected to compete. The awards were announced on 21 May, the Palme d'Or went to the Belgian film L'Enfant by the Dardenne brothers.