So Ji Sub had to act out the action scenes almost naked on 'Battleship Island'?

So Ji Sub commented on his character, "My role consisted of a powerful action scene," giving a bright smile. He then added, "I had to act only wearing underwear," and looked down in embarrassment. �

Actor Hwang Jung Min also complimented his co-star for his passionate acting abilities. "He acted out the scenes without using any kind of protective gear." �

Speaking of protection, actress Lee Jung Hyun mentioned about So Ji Sub, "I think it had to do with the fact that he had done so many action�sequences in the past, he was like our safety expert on set. When he saw a sharp nail sticking out where one of the female staff was standing, he would call out 'Wait,' and take necessary safety measures."

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Meanwhile, the historical film is set to launch in theaters this July.