Other mistake: When Rex shakes the table causing the baby monitor to fall, the batteries fall out and we see the open battery compartment with markings for positive (+) and negative (-), and space for two AA batteries. Woody jumps off the bed and places the two batteries inside the compartment, but before he closes the compartment note the position of the battery closest to the top of the monitor. The positive side is actually where the negative side should be so the monitor should not work, but the monitor turns on just in time to hear the soldier's warning. (00:13:15)
Other mistake: In the scene where Robin Williams tells Sarah that she needs a 12 to win, she rolls a 3. The next time she rolls, Robin tells her she needs a 7 to win.
Other mistake: When Johnny Cage is fighting Scorpion in the forest, after Scorpion unleashes his snake-like spear from his hand but before the camera switches to Johnny, you can see the spear move down and it appears to be coming out of his forearm. Also the hole in Scorpion's hand from the spear is now gone.
Other mistake: It's pretty bright in the cemetery considering that there are barely any lights.
Other mistake: In the scene where they are 1st landing at Bangor it is known that there is no electricity at the airport. If you look closely during the landing you will see that the runway lights are on. (00:50:40)
Other mistake: As the priest walks out of the haunted mansion with his head twisted, you can see the head and body don't step in time together.
Other mistake: After Marie and Fritz take off to the Christmas tree in the first scene where they talk to their parents, Fritz is shown pulling toy soldiers off the tree to play with. In the first shot of the tree, Fritz stands back up from the toys he has already taken down and reaches for another one. There is nothing in his hands. The spot he reaches for has nothing in it, but as soon as his hands reach that part, a toy soldier suddenly appears in the spot he touches, without the camera cutting. And then in the next shot he bends down and puts his hands on his toys as if he is placing the toy soldier with the rest, but there is again nothing in his hands.