Revealing mistake: When the boys are racing away on their bicycles from the Feds, the stunt doubles for Elliott and his friends are obviously way too tall to be children.
Revealing mistake: In the scene where Harry and co. are in the Room of Requirement, at several points during this scene, you can tell by the way the light shines that Harry's glasses are missing their lenses, especially in close up shots of Harry.
Revealing mistake: When Calvin falls out of the tree, he lands on the ground on his back. This would at least knock the breath out of him, but he is not hurt at all.
Revealing mistake: When Ray, Winston and Egon are underground looking for the river of ooze, there is a scene where they break down a small wall of rocks. Ray then sits on one of the rocks and it bends under him - it's rubber or foam. (01:01:50)
Revealing mistake: When the bugs crawl out of E.G. Marshall's mouth, it is obviously a dummy.
Revealing mistake: The Eternia out-door scenes depicting the conquest of the Castle Grayskull area are actually one long shot subdivided into smaller parts. Look at the captured Eternian soldiers marched to the castle; they cover very little distance between the shots.
Revealing mistake: When Sandra Bullock and Nicole Kidman drag her sister's "dead" husband/fiancé into a room, the door hits him on the head and his eyes move.
Revealing mistake: When Kate, Chris and Lord Arnaud are in the hidden monastery tunnel, there is an explosion that shows them the way out. One of them crawls forward a little and puts his weight down on a big chunk of stone, which flips about like it weighs nothing. It's very obvious that it's a piece of styrofoam rock. A piece of stone that size would not move as freely as this one did from just leaning on it. (01:31:30)
Revealing mistake: At the end fight scene when Lamia is laughing, you can see that her teeth are only darkened in the front, not the rear. (01:55:10)
Revealing mistake: After Lucy discovers Mrs. Bradley in her bed, as she fights off and runs from Patricia, it is obvious that she wears knee pads for these shots.
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: As the three zombies go rabid at the house party, and McGruder and Thug tear the skin off a guy's face, the switch from actor to dummy is visible. (01:10:55)
Revealing mistake: In the scene where King Arthur expounds on the joy of his kingdom, he has a Band-Aid on the back of his neck. (00:21:00)
Revealing mistake: Just before Walter throws Lisa through the window, you can tell that Lisa is a stuntman wearing a wig.
Revealing mistake: Near the end (DVD), when Sadako comes out of the TV, you can see where her finger extensions have been placed (you can see the join between her real finger and the fake one). (01:22:50)
Suggested correction: She's not wearing finger extensions. There are small prosthetics to make it look like her fingernails are missing, but her fingers are normal length.
Revealing mistake: When Watson is standing over Jackie's dead body and says "I'm sorry I wasn't there when you needed me most, my friend" you can see Jackie reflected in the TV standing ready for his queue before entering the picture. (00:41:55)
Revealing mistake: In the scene where Sonja's sister is escaping from the temple she is shot with an arrow whilst on an aerial slide. Her body hangs limply and is met at the end of the slide by Kalidor. However, the limp body is a stunt *man* in drag.
Revealing mistake: When Ernest runs away from Lisle, after he nearly drinks the live-forever potion, he runs down a hallway and commences to open a door with a doorknob on the left side of the door. It then cuts to the other side of the door, of Ernest walking through the door (into the party), and now the doorknob is also on the left side of the door, but it should be on the right side. (01:21:35)
Revealing mistake: At the end, there is a group of people with their backs to the camera, facing & waving to the Fantastic 4. As the F4 fly towards the camera and out of the shot, the crowd turns to continue waving to them. One small boy in white remains facing the wrong way, still waving, until another child grabs the back of his clothes & turns him to face the right way.
Suggested correction: Not necessarily a mistake. Little kids can have a hard time keeping track of/focusing on things. I know little kids that have a hard time looking in the direction of the camera when their picture is being taken.
There's a difference between not looking at a camera when you don't care about having your picture taken and being able to follow superheroes that pass you, especially if you're waving at them. The reason it's a revealing mistake is because everyone involved had to pretend superheroes were passing them and the kid didn't know when to turn.
Revealing mistake: After Alex steps off the bus at the same corner as Camryn and Beth, some of the same extras keep walking past in quite a few of the following shots. Two examples are the woman wearing a striped top and black skirt, and the man wearing a plaid shirt and tan pants. (00:09:25)