Continuity mistake: When Pierce's wife is walking in her auto shop they pan down to show her red Louboutin heels, then they cut to her walking in her office, and when they show her shoes again they have a tan sole.
Continuity mistake: When driving the silver Audi A6 the first time, the version they are driving is a diesel, seen by the exhaust pipes facing down towards the ground with a bend. In the next shot they are driving the petrol version of the same A6, seen by the exhaust pipes holes facing directly out from the car. (01:18:33)
Visible crew/equipment: After going through the turnstile in Oslo, the Protagonist walks up to an ambulance, knocks out the driver and steals it. When he begins to drive off, the shadow of a huge stage light can be seen cast on the side of the ambulance. (01:44:34)
Continuity mistake: Angelica has flowers on her dress. During the wedding, they disappear and reappear between shots.
Continuity mistake: During the whack-a-robot game, a big chunk of the broken robot lies on the counter, but it disappears a shot later.
Revealing mistake: When Millie jumps on her shop teacher's back, the teacher switches from the actor to a stunt double as they begin to tumble about. Noticeably, his hair suddenly gets much darker and has less gray in it. You can also get brief glimpses of his face, and it's obviously not the actor.
Continuity mistake: The mini Puft makes a hole in the marshmallow bag between the letters H and M. In further shots the hole is fixed and it's now between the A and the L.
Continuity mistake: Mulan is having dinner with her family after her father has been drafted. During the scene depending on the camera angle her arms are folded, or her right arm is leaning against the table while she is holding chopsticks in midair. (00:20:55)
Continuity mistake: Parker filled a beer pitcher and there was very little foam. After leaving from behind the bar, the beer pitcher was half foam. (00:20:50)
Factual error: The aircraft shown in the movie is a DC-3, however the correct aircraft would have been a Convair CV-240 which is a very different model.
Continuity mistake: When the boy is about to eat his corn bread, the knife on the left keeps changing positions between shots.
Continuity mistake: The protagonist receives her gift from Molly Shannon. She unwraps it and puts the discarded wrapping on the counter. When we see it again at the end of the scene, the wrapping is much less torn apart than the first time around (or at least has been arranged neatly). (00:09:45)
Deliberate mistake: In the Spanish release, the name of the family store is written in Spanish, but inside the place it's in English everywhere. This is a very common mistake in foreign kids' films released in Spain.