![Superman/Doomsday mistake picture](/images/screenshots/208000-208999/208815_sm.jpg)
Continuity mistake: After Superman blasts Doomsday away from him in the Subway station, Doomsday grabs him by the leg and flings him to the other side of the tunnel, breaking a large hole in the wall. As he hits, you can see there is a subway exit on the same wall about a yard or so away from where Superman hits. But then when Doomsday leaps at him to continue his attack, the wall is suddenly solid where the exit once was. (00:22:50)
Answer: In the comic book, Doomsday was put in a strait-jacket, strapped in metal bondage and placed in a cube like metal prison buried deep in the earth. It took him centuries just to break the bonds, then spent more centuries just punching his way out. With earthquakes, volcanoes and other natural disasters those events could shift Doomsday's prison to the surface.