Actor Charlie Day was unknowingly electrocuted multiple times on the set of new movie Pacific Rim due to a technical glitch in his costume. In the film, directed by Guillermo del Toro, the Horrible Bosses star plays a doctor fighting to save mankind from an invasion of giant monsters by suiting up as an oversized robot to do battle. But he was left reeling in pain while shooting the sci-fi project because of a live wire in his headgear, which had become disconnected, sending an electric current through his body. He tells U.S. TV host Jay Leno, "Guillermo, the director, he builds these gigantic, practical sets and practical props... one of which almost killed me. I sort of had this like Honey, I Shrunk the Kids kind of contraption on my head... and we kept doing these takes, and I'm like, 'Man, it's just cutting into my ear, I'm not bleeding but it feels sharp...' "Months go by and I keep using this thing and my lab partner in the movie has to put it on and he turns to me and he's like, 'You do realise this thing is electrocuting you right?' There was a little loose wire on it that every time it lit up, it was just sending an electric current into my body. So if I seem shocked in the movie, that's why."