It was recently revealed that actor Kwon Sang Woo tore four ligaments in his ankle while filming for his new movie ironically titled, 'Pain'. During an interview with Newsen, a representative from 'Pain' stated, "There was a scene in which Kwon Sang Woo had to jump off a rooftop and then again jump towards the director Kwak Kyung Taek, and it was in that particular scene that he injured his ankle. But he showed his fighting spirit as he did not complain and continued to work." He continued, "Sang Woo had to limp through the rest of the scenes and this limp actually seemed to suit his character of Nam Soon better so we modified the story accordingly. It looked more natural." Kwon Sang Woo admitted that his ankle was, "still not better" and that he was, "seeking medical treatment at the hospital." 'Pain' is set to hit the big screen sometime in September and tells the love story between a man�unable to feel any physical pain after being the�only one of his family members to survive a tragic car accident and a woman to whom even the slightest amount of pain may be extremely fatal. Kwon Sang Woo plays the role of 'Nam Soon' who lives a meaningless life after losing his family, and because the accident left him physically unable to feel pain- he takes on jobs that require him to abuse his body. Because he took on this kind of role, Kwon Sang Woo had to shoot many action-packed scenes. He had previously injured his ankle before while filming 'Into the Fire' and shortly after suffered another ankle injury while playing football, so his ankle was in poor shape going into 'Pain'. Source & Image: Newsen via Nate