Revealing mistake: In the scene where Van Pelt sticks his hand out of the pile of paint cans you can see a can roll and bounce off of his extended fingers. A can of something that heavy would stop, not bounce off. Van Pelt's hand and wrist are shown covered in paint, so we know the can wasn't empty.
Continuity mistake: During the stampede, when the four are watching the animals pass by the hall, Sarah is randomly next to Alan or behind him. Also, when the stampede ends, the four swap from being separate to firmly together in a mere frame.
Continuity mistake: When the pelican grabs the game, there's a wide shot of Alan running behind the bird. The damage on the side of the arch behind is bigger than it was in the immediate previous shot.
Continuity mistake: When the monkeys go into the police car, they take the shotgun and fire it through the roof destroying the roof lights, but in all the later shots of the car the lights are still destroyed, but the roof shows no damage.
Other mistake: This is about the collector's edition DVD cover. On the back cover, the blurb says "With the help of young orphans Judy." But the cover doesn't make any mention of her brother. It should say "young orphans Judy and Peter" or "young orphan Judy."
Factual error: Carl tells Alan that his police cruiser is brand new, but the Chevrolet Caprice he is driving is a 1991 or 1992 model as it has "skirted" rear wheel wells.
Visible crew/equipment: When the monkeys enter the cop's car there's a huge lighting screen with a bunch of tubes reflected on the left side of the car.
Continuity mistake: When the cop's car windshield gets destroyed, he says, "my car, my car..." When he's driving Alan, more of the glass is there.
Continuity mistake: In the supermarket, right before Peter spills detergent on the floor there's a shot of his feet walking by a shelf. The corner of the shelf is spotless, yet a frame later, from a wider angle, it's all covered with garbage.
Other mistake: Alan's dice rolls throughout the movie does not add up to the 33 steps needed to win the game. The four paths vary from 32-35 steps to win. Alan rolls a 5, Then his next roll isn't visible but the location of the elephant, when Robin Williams returns after being hunted by Van Pelt, is square 9, making his roll a 4 (the dice shows 3 but they aren't reliable since they could've shifted in the commotion). His next roll is a 7 and the winning roll is a 3 for a total of 19. Even if we allow his second (questionable) roll to score 11 it still only lands him on 26. Alan never rolls a bonus roll. And no, shortcuts across the board weren't used since Alan's elephant finishes its original path when it crosses into Jumanji. Furthermore, statements made by the cast that they only need a certain roll to win the game are pretty much all inaccurate if you count their rolls and steps along their path.
Suggested correction: It's possible that where the paths cross don't count as "spaces" since two players can't be on the same path. Meaning each path is only 26 spaces (including the final Jumanji space). If we do count Alan's 2nd roll as 11 then he won in the required amount of spaces. The only two that are actually inaccurate are when Peter stated he was 10 spaces away when he cheated (he would have been 19 spaces away) and Sarah being 12 spaces away when she only rolled a 3.
Character mistake: When young Alan is talking young Sarah, he says that he found a board game at the factory. Alan didn't find the game at the factory. He found the game across from the factory at a construction site.
Suggested correction: The construction might very well be part of the factory, a new factory building for example.
The sign at the construction site said it was an "Executive Office Annex" that they were building.
Even though the sign said it was an Annex, construction was still being done outside of the main factory where Alan found the game. Not inside of the main factory itself.
Visible crew/equipment: When the vine takes the police car into the woods, a very obvious film light is visible reflected on the back of the car.
Continuity mistake: Peter says he only needed a 10 to win. Impossible. He has only rolled a 2 and 5 (in the attic).
Other mistake: Judy tells Sarah, "You can win if you roll a 12." She rolls 3, meaning she would need a nine to win. When trapped in the floor, she is told she needs a 7 to win. But that is not correct. If I count correctly, you need 32 spots to win. I don't know if any get 32 or more.
Suggested correction: There are cross sections on the board. Meaning probably, if they land on one, the pawn will go in a different direction and either take longer or shorter to get to the end. It's impossible to know what path the pawns did take. The total number of squares is either 21, 26, or 30 squares to reach the end, depending on the route the pawn takes. But possibly even longer if the game wants that, as the pawns move on their own.
Continuity mistake: After Judy is shot by the poison flower, Peter cradles her in his arms. That is in close-up. When it goes to wide shot, he isn't cradling her anymore.
Audio problem: When Alan is trapped by the floor he is given a wooden log and then tosses it away. The foley artist forgot to add the thump of the log crashing on the floor.
Continuity mistake: After Alan swings on the rope and grabs the game he opens it and suddenly hears the hunter say "Don't move." During those shots the position of the pieces on the board are not continuous.
Continuity mistake: When the house is breaking in two and the floor swallows Alan, the damage to the round window is not continuous between the shots inside and the angle shot from outside.
Continuity mistake: When the movie ends and Alan becomes young again he hugs his father. The position of the handkerchief on his suit changes between shots.
Continuity mistake: When Peter sets the Jumanji game on the table for the first time, it is placed sideways in the wide shots, or parallel to the table in the close-ups.
