CANNES, France (AP) — Twenty years ago, Guillermo del Toro premiered “Pan’s Labyrinth” at the Cannes Film Festival . He went in anxious. It was toward the end of the festival and many journalists had left. The movie’s production had been a nightmare. Then the audience gave it a 22-minute standing ovation, the longest in Cannes history. “It’s a commute,” joked del Toro. “That’s about what it takes me to get from home to the office. Alfonso Cuaron, who made this movie with me as producer, turned