Continuity mistake: When Princess Mia takes the chicken out of the basket and it gets loose, we see the chicken run away, followed by Princess Mia running after the chicken, and finally the palace guard falling amid a number of boxed, gift-wrapped presents. The only boxed presents that were visible in any of the previous shots were already on the floor and there were none anywhere close to the palace guard that he could have knocked down as he fell.Sheri Hartman
Continuity mistake: When Princess Mia is announced at her birthday ball, she waves with her right hand and then waves so enthusiastically with her left hand that her bracelet flies off backward. We see it flying fairly high up judging by the door in the background. But when the doorman catches it, its much lower then it should have been (from the previous scene) with a much lower and flatter trajectory.Sheri Hartman
Trivia: In the opening scene where Mia is introduced and waves to the crowd from atop a staircase, (wearing a big red dress) she accidentally flings a bracelet off her wrist, where a footman catches it. That is the same footman who catches the snail Julia Roberts flings in Pretty Woman, and he uses the same line "It happens all the time".