Visible crew/equipment: When 'The Commander' picks up the special hero-mobile phone in the kitchen, as he talks, he leans forward and the autocue screen is very clearly reflected in his glasses.

Audio problem: When Will meets Layla at the bus stop he says to her "You're not going to believe what happened to me last night," however his mouth continues to move after he says this.

Continuity: The school bus changes back and forth between a long and short version within several scenes.

Revealing: There are multiple times throughout the movie when the "wind effect", the hair of the characters being blown up by wind off of Speed's super speed, is not in sync and occurs prior to Speed actually zooming past. The 2 most notable occurrences of this are when Speed steals the pudding from Ethan and moves next to Lash and when Speed steals the Pacifier from the secret sanctum.

Revealing: When Will flies back in through the window and picks up Royal Pain, you can see that the back of Will's jacket is sticking up, which was where the harness was lifting him up.

Continuity: In P.E., after Warren says, "Hey! Get your head in the game!", while Coach Boomer is giving them the rules to the game, the timer switches on, and the citizen gets lowered down. When the citizen starts out, its feet are pointing toward the timer board, but in the next shot, its body is parallel to it.

Continuity: When Layla is being attacked by Penny she fights back using the plants, and breaks the window. As Penny is informing Layla that Royal Pain had broke the anti-gravity device the window is still broke, then the camera goes back to Penny and then again to Layla and to the right of Layla's head you can see the window fully intact again.

Continuity: When Mr. Boy offers Layla a drink at the dance, the amount in the cup changes. Also, after Lash spills the drink on Mr. Boy, half the drink is still in the cup, but in the next shot the cups empty.

Continuity: In P.E., when Will and Warren are up against Speed and Lash, the first time Will gets knocked over he gets thrown against a wall. When he lands on the floor, he is pretty close to the wall. In the next shot, after Zach says "Ouch", Will is much farther away from it.

Deliberate "mistake": Mr. Medulla said that Will stepped on his foot when he was walking to his desk. If you look closely you can notice that he stepped over his foot instead of on it.

Continuity: When 'The Commander' gets mad in the kitchen, he hits the counter and all the utensils fly. Between shots the knives in the knife block change position and some disappear.

Continuity: The first time the bus takes off for Sky High, you see the name change from "School Bus" to "Sky High School Bus." In the next shot it says "School Bus" again.

Revealing: The commander raises his arms,clenches his fists and grimaces in pain before the beam from The Pacifier hits him.

Continuity: Kelly Preston's hair changes back and forth between shots, during the scene when the parents discover the party in their house, and in consecutive shots throughout the movie.

Revealing: When Layla and Will are sitting on Will's roof, after she grows an apple for him, in one of the following shots when she's turning it around in her hands the apple has a visible plastic seam.