Continuity mistake: As Superman is returning Lois to her apartment after rescuing her from Toyman, he goes to land on the balcony outside her room. It is first shown as small with only a table and one plant on it. But as soon as Superman lands, it is suddenly a lot bigger and a lot more stuff is on it. (00:39:25)
Continuity mistake: As Superman is saying to Lois that he will see her soon, the buildings can be seen behind them in the close up. It cuts to a far shot before he lifts off and the building that is seen above Lois' head, the windows and lights change position. The building behind Superman's head also changes slightly and becomes more symmetrical. (00:39:50)
Continuity mistake: After their awkward goodbye when Superman leaves Lois on her balcony, her hands are at her side. It then cuts to a front shot and suddenly she has her hands crossed in front of her. (00:39:55)
Continuity mistake: The live news broadcast of Superman's interview after his resurrection shows it broad daylight in Metropolis. When Martha Kent sees this at her farm, although being in the same state, it is pitch black night time outside at her house. (00:40:10)
Continuity mistake: The day after his ‘resurrection', Superman is standing in Lex's office looking for him. Behind him in the high shot, you can see Lex's desk with a computer monitor close to the center in front of the chair. It then cuts to an angle in front of Superman and pans across the same desk, and suddenly the computer monitor is twice the size and right on the edge of the desk, a second monitor appears on the far right of the desk, and the armrests on Lex's main chair vanish. (00:40:40)
Continuity mistake: In the overhead shot of Superman standing in Lex's office, he is standing on a stage like area raised with small stairs. The circle he is standing on is a gold color with some blue towards the outside then a gold ring. And Superman is standing almost dead center. A couple of shots later, without him moving, it shows Superman's feet and now he is standing closer to the edge, and the circle is now totally blue except for the gold ring around it. (00:40:45)
Continuity mistake: When Superman is walking through the mazelike area in Lex Corp looking for Lex, he walks down a hall that has multiple tiles and stuff on the floor. It cuts to a different angle as he reaches the end of it and suddenly the hall is much more narrow, and the tiles become singular and bigger. (00:40:55)
Continuity mistake: As Superman is walking up to the room that Lex is leading him to, it opens up and there is the red and green panel of the door on the side, but on the metal of the door frame. It then cuts to a closer, higher angle and suddenly the panel is beside the door frame on the wall. (00:41:10)
Continuity mistake: When Superman enters the ‘Rumpus Room', the red solar lamps turn on and there are lots of red hexagons on the ceiling and floor that glow as well. Throughout the entire scene, the red hexagons are never consistent in size and position from one shot to the next. It is most noticeable when Superman hits the ground after Lex's assault and the hexagons are roughly the size of his ear. But then in the high shot, they are bigger than his whole head. (00:41:15 - 00:42:20)
Continuity mistake: As Superman walks into the ‘Rumpus Room', the door shuts behind him as he crosses the threshold. It cuts to a shot behind Superman and instantly he is almost totally on the other side of the room, away from the door. (00:41:15)
Continuity mistake: Lex holds up his Kryptonite gloves and is about to beat up Superman in the ‘Rumpus Room'. When he holds up his right hand it cuts to a close up and one of the joints on his thumb piece disappears, making it a 2 piece part where it was 3 pieces. (00:41:30)
Continuity mistake: Lex says "Red and green, the colors of Christmas." When he does, he holds out his arms to his sides palm up and looks wondrously up at the red solar lamps. It then cuts to a closer angle and instantly his right arm and hand are in a different position and his body is turned differently just before he begins pounding on Superman. (00:41:35)
Continuity mistake: Lex has Kryptonite jewels on the knuckles of the metal gloves he wears when he is beating up Superman in the ‘Rumpus Room'. After he knocks Superman down and is climbing on top of him, the Kryptonite has vanished, but as soon as he stops moving, they reappear in the same shot. (00:41:55)
Continuity mistake: After beating up the clone of Superman in the Rumpus Room, Lex walks up to the container holding the real Superman's body and talks to it. There is a towel draped over Lex's left shoulder, and the shadows are on the right side of Lex's face and body. It then cuts to an angle showing Lex's reflection in the glass of Superman's container, and suddenly the shadows on his body move to the same side as the towel. It cuts to a different angle and the shadows go back to his right side. (00:42:50)
Continuity mistake: Lois is caught in a daze staring at the co-worker that is now in Clark's place. She has her left arm up resting on the back of her chair. Her phone rings and she turns to look at it, and then the camera cuts to a different angle, and suddenly her arm is down off the chair. (00:43:45)
Continuity mistake: When Lois is on the phone with Martha Kent, the guy she was awkwardly staring at moments before is seen in his cubicle where Clark once was. A paper suddenly appears pinned on the wall next to his painting. (00:43:55)
Continuity mistake: There are some papers pinned to the wall of Lois cubicle as she is awkwardly staring at the new co-worker that is in Clark's spot. A bit later when she answers the phone to Martha Kent, the papers have moved closer to the edge of the cubicle wall. (00:43:55)
Continuity mistake: After Lois gets off the phone with Martha, the scene changes to just outside the Nite Club. A car pulls up and two girls get out, a blond and a redhead. When they get out in the high shot, the blond is on the right and the redhead on the left. Then it cuts to a frontal close up of the girls and they switch positions. (00:44:15)
Continuity mistake: When the girls get out of the car in front of the Nite Club, there are photographers roped off from the sides of the entrance. There are only 3 poles holding up the rope on either side of the entrance parallel to the walk way. But in the close up as the girls are walking to the door, they pass 4 poles. (00:44:20)
Continuity mistake: After getting out of the car, two girls walk up to the Nite Club past some photographers. As they do, it cuts to a close up of the photographers, and suddenly the blond guy with the backwards black ball cap has his camera lowered instantly, and the guy in the gray suit beside him suddenly turns into Jimmy. (00:44:20)
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.