Revealing mistake: When the final round starts and Rickshaw's broadcast ends, the usual countdown numbers appear on the screen. In this shot the camera is panning to the left, and you can see the numbers sliding around a little as they change. This makes it obvious they are superimposed on the film, and not actually on the TV. (01:01:20)
Revealing mistake: There is a large rip on the side of Charge's mask. It is supposed to be that his mask has been ripped. But you can tell that the mask was designed to look like it was torn, the effects of sewing are obvious.