A Machine Was Used in the Tug-of-War Scene
In the tug-of-war scenes, contestants on two opposing ends struggled to pull the rope hard enough to push the other team over the edge and to their eventual deaths. But audiences may not realize that it was a machine pulling on the other end in real life, which made it difficult for the actors pulling. In fact, Lee Junga-jae, who played Seong Gi-hun, claimed that it was one of the most physically exhausting scenes they had ever done and he was nearly knocked out in the process.