Other mistake: When Harry, Ron and Hermione rush to Hagrid after the end of the year exams, and Harry is saying something that ends with, "Why didn't I see it before?", Hermione is mouthing part of that line. [Emma Watson did admit she learned Dan and Rupert's lines as well as her own and found herself accidentally mouthing them.] (01:50:40)
Other mistake: When a glass of milk is poured, if you look closely, the glass is filled but the level of milk in the bottle doesn't seem to lower. (00:16:00)
Other mistake: When they are playing polo on the field one guy scores a goal then when Mary-Kate scores the goal it is the same shot - the guy on the horse is in the same place during both shots.
Other mistake: Near the end of the film, when the identity of 0001 of the CDA is revealed, number 0112 is shown both standing next to 0001 as Roz enters the room and behind Sully and Mike on the opposite side of the room. (01:16:45)
Other mistake: In one scene, Dan Montgomery is in his office when someone brings him one of the flyers Kevin had put up. When she enters the room Montgomery is playing a green Game Boy except there is no game loading into the Game Boy.
Other mistake: When Scooby and Shaggy are in the cafe, Shaggy says "Can you believe the cafe ran out of food but we're still hungry." But we can see food behind the counter.
Other mistake: In the beginning, the girls arrive at the airport in Chicago and you can see a billboard in the background. Then the credits roll and they land in the sunny Bahamas and as they are driving away in the limo, the same billboard can be seen in the background. Guess they were on a tight budget and had to computer generate the snow over a scene filmed in the Bahamas.
Other mistake: At the end of the movie, when Mia is observing her new palace, the Genovian flag is fluttering on its top. But as the plane circles, the angle of the flag should change, but it doesn't. Obviously a CGI error.
Other mistake: When Milo is practising his speech, he jumps over the blackboard to answer the phone. The top of the blackboard rests on the desk, but when he slides back over, it swings all the way round . If it hit the desk one way, it would have hit the desk swinging the other way round.
Other mistake: When Butch says "Welcome to HQ", his mouth isn't being animated.
Other mistake: When Stephanie (the kid's mom) gets sprayed with mud by the bus, it is accelerating as much as it can in reverse. Why would it accelerate so much in reverse if it's trying to avoid falling down the hill?
Other mistake: Near the end of the movie, Juni watches the start of the Floop's Foogles show. Yet the clock on the TV showed out the time to be 10:15 - 10:20.
Other mistake: When Nutcracker and Clara meet Marzipan the horse, Clara strokes her mane but if you look very carefully, you'll see that she's not petting her at all. She's actually just petting her in mid air without touching her at all.
Other mistake: In the courtroom scene near the end of the film, the Apple logo on the laptop is upside down.
Other mistake: When showing "In Association with" in the English dub's credits, The Pokémon Company is misspelled as "The Pokeman Company." (01:15:37)
Other mistake: The size of the town Jimmy lives in is inconsistent with the size of the population shown. The town is quite big if it has its own mall, amusement park, and a large elementary school. Yet combined with the kids and adults seen, there couldn't be more than a hundred people living in this town.