Other mistake: Dong-mae grabs a sword and slits the throat of a Japanese man, which causes blood to get splattered over both the left and right side of his face, as well as his neck and his chest. This would not be possible for multiple reasons. One, the slit was relatively small, so there wouldn't have been that much blood. Two, Dong-mae was standing too far away from him for the blood to travel that far. Three, Dong-mae had his head turned away from the man when he slit his throat. (00:43:19)