Continuity mistake: When both Explorer vehicles are parked at the paddock, in the shot of the goat being raised to lure the T. Rex, the "No! Feeding..." sign is permanently affixed to the front of the concrete wall, but in the previous and following shots that same sign is affixed to the angled top part of the wall. Later, when the power goes out, that sign is once again affixed to the front of the concrete wall.
Visible crew/equipment: In the finale, Jessica runs over to Jason from behind and she stabs him in the heart with the dagger. Then, Jason lashes back and hits Jessica, and she goes flying backwards. Absolutely anyone can see the large blue crash mat that she lands on (cropped/edited out in some versions). (01:20:25)
Continuity mistake: During the final fight scene, Spartan grabs Phoenix and they land on top of the ice block and roll off in front of a few metal jugs. The camera angle changes to a close up and the jugs are not there anymore as you see Spartan punching Phoenix. (01:46:35)
Continuity mistake: When the two Ninja robots fight, the robot on the left loses his head before the blade strikes.
Character mistake: When Mario and Luigi are escaping in the stolen Police car, a warning on their screen reads "Tunnel not finnished." (00:43:30)
Visible crew/equipment: When Beldar comes home from playing golf, he comes through the door from the garage. When he enters, he finds candles lining the floor. As he heads down the hallway towards the kitchen, look to the right of the screen and you can see a crew members hand on one of the stiles of the handrail of the staircase.
Continuity mistake: When the crime bosses meet up at the casino, in the exterior shot, there are a few items on the desk including a bottle, an ash tray, a plate with a slice of pizza and a newspaper. Later, when Batman appears and punches one of the crime bosses onto the table, the bottle, ash tray and plate have suddenly moved closer to the newspaper. (00:02:00 - 00:02:28)