Alexandre Aja, director of horrors High Tension, Piranha 3D, and The Hills Have Eyes, stops by Cinema Royale to talk about his latest film, Horns, starring Daniel Radcliffe. He discusses casting Radcliffe in the lead role of Ig Parrish, a boy who grows magical horns and uses them to solve a murder mystery. With Horns set to have a presence at Comic-Con, Aja talks about what fans can look forward to.