Revealing mistake: In the scene where Ronnie visits Brundlefly for the second time we see Brundlefly walking on the ceiling and wall, however his shirt doesn't remain consistent with gravity. This is especially obvious when he pulls his shirt up to show Ronnie his new tumor and then places it back down. The shirt appears to be being pulled up to towards the sky from Ronnie's perspective. (01:07:30)
Revealing mistake: At Jareth's castle, in the room with the Escher stairs, Sarah sees Toby and she jumps. It's very apparent that it's a stuntwoman jumping from the ledge in the wide shot. (01:30:20)
Revealing mistake: In the opening scene the camera pulls back from a bedside locker to an over the shoulder shot of Kathleen Turner doing her make up in the mirror. Close inspection shows that the shoulder in the foreground is actually that of a double who doesn't quite match Turner's movements.
Revealing mistake: When Sardo is aiming at Jarrell running you can see Kee Nang hiding behind a post, looking to the side waiting for her turn to get into the shot. (01:13:55)
Revealing mistake: It is obvious a dummy was used when Steve is thrown from his easy chair into the kitchen cabinet.
Revealing mistake: When Ayla is looking at her "ugly" reflection in the lake she moves her hand down and a second later the reflection moves its hand down.
Revealing mistake: The initial fight with Fasil is supposed to take place in the parking garage underneath Madison Square Garden. But in the shot where wrestler Terry Gordy is smashing his head against the turnbuckle, a banner for the New Jersey Nets is visible in the upper left corner of the screen. The arena scenes were actually shot at the Meadowlands Arena in East Rutherford, New Jersey, where the Nets play.
Revealing mistake: During "Our Beginning," True Heart Bear takes a walk beneath the ship's deck to check on the sleeping cubs. But when Proud Heart Cat wakes up for a moment, his tummy symbol is visible - which he's not supposed to receive until arriving at the Kingdom of Caring several minutes later. (00:02:20)
Revealing mistake: When Egg Shen helps the others escape by using a crossbow-and-winch device, he fires the bolt into a stone. When the bolt digs in, the stone shudders slightly (since its made of wood or plastic, and no fixed part of the floor).
Revealing mistake: The chairman parks his car in front of Bel Fuse Ltd. And goes upstairs. His car explodes, but does it in front of a different building, probably switching to a stage building front; the metal doors don't have vents anymore and there are visible join lines in the asphalt and the cement. (00:15:10 - 00:15:40)