Song Joong Ki says he first found out about the history of 'Battleship Island' from 'Infinity Challenge'
Song Joong Ki talked about how he first learned about the film's actual location, Japan's Hashima Island. He said, "I honestly didn't know much about Hashima Island as well as the historical background. I only picked up a few points from 'Infinity Challenge.'"
He went on,"Since the film was based on actual events, I studied a lot. I was embarrassed for not knowing about the history."