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 to me at some point and said, ‘Let it in. Relax.’ I was very tense. I’m not very good with praise.” Del Toro returned to Cannes on Tuesday to screen a restoration of one of his most beloved films. Shortly beforehand, he met a reporter for an interview at a hotel on the Croisette, a few steps away from where his filmmaking life changed two decades ago.…