Revealing mistake: When Woody falls out of the closet wrapped in the string lights he hears Buzz's voice, and in the next shot as Woody sneaks up to Hannah's room we see Sid's open door and doorway, which looks perfectly normal. However, after Woody rescues Buzz from Hannah's tea party they both stop in the hallway, and there's another shot of Sid's open door and doorway, only this time it's not normal to say the least. Five of the six hasps, bolts, and locks that should be (and normally are) screwed into and attached to the inside of Sid's door (one hasp mechanism, third one down from the top, is attached to the door's frame) are now actually kind of floating there in mid-air right beside the doorway, as if there's an invisible door there. Weird that Pixar artists deliberately did this, but it's bizarrely funny to see.
Revealing mistake: When the Rangers kick Oozemen's ass, the pink Ranger starts off with the "You guys make me sick sick sick -kick". While all Rangers are fighting, the blue one is just standing still next to the camera. You can see his shoe in the in the lower right corner waiting for his entrance. (00:22:30)
Revealing mistake: At one point when the sheep are in a neat formation, you can see straps holding them still.
Revealing mistake: During the monsoon scene, everyone is on a table trying to climb on the chandelier. Peter has been turned into a monkey, and his face is covered in hair and has the characterists of a monkeys face, yet in shots when they are on the table, like when the crocodile snaps at them on the table, just before Alan lifts Peter onto the chandelier, you can see the plain face of his stunt double, with no monkey features! Robin William's and Bonnie Hunt's doubles are rather obvious in these same shots too. (01:17:20)
Revealing mistake: In the final battle scene Morgan grabs a rope and swings from one ship to the other. She grabs the rope over her head and keeps the rest of the rope in front of her. The rope remains taut all the way to her waist. If she were really holding herself onto the rope, it would be dangle loosely below her hand. The tautness of the rope reveals the safety equipment used in the shot.
Revealing mistake: The monitors in the hospital attached to Mr. Banks's wife and daughter didn't move, although they should have shown something important about the patients.
Revealing mistake: Casper is shown tying together the shoelaces of the students in Kat's class. When the bell rings and class ends they all get up and fall down. If you look closely you can see that their shoelaces are not tied together.
Revealing mistake: You can easily tell that the snow in the end is fake.
Revealing mistake: Near the end, Little Bear makes a fire and places something in Omri's hand. But when Omri puts out his hand, it goes right through the flame and stays there for a while, yet Omri doesn't even flinch. The fire is definitely large enough to burn him, and had this been real life, he would have been burned severely, no matter how strange his character is.
Revealing mistake: When Sara and Ms. Minchin are fighting in the attic, it is night time, but there is light coming through the cracks of the attic.
Revealing mistake: Near the end of the film Willy jumps on a barrier in the water, causing it to break. During that scene its clear that the orca has been pasted into the background as the outline is too sharp.
Revealing mistake: Marie and Nutcracker go down the river in a swan shaped boat, and Nutcracker is standing up on the back moving the boat along with large pole. In the water, you can see the reflection of the boat and Marie the way they are supposed to be. But the reflection of Nutcracker is not moving, and the pole is not reflected.