Audio problem: In "What I've Been Looking For", when Sharpay sings the last verse the first time around, listen closely as Ryan takes away the microphone. Her voice remains the same volume, and does not get any quieter as Ryan pulls away the microphone.
Audio problem: Alexis confirms in a conversation with his brother that it's Valentine's day 2006, but if you watch his lips he says 2004.
Audio problem: In the shot where the kids are locked in the police car, banging on the windows yelling at the policemen, their cries are muffled as if the car was totally closed up. As the camera zooms in, you can see the front driver's side window is open so the kids' voices should be much clearer.
Audio problem: When Doug is staring at the terrorist and says, "I can see him, he's right in front of me", you'll notice that his mouth moves a little before words are actually said. This is because he first says "Jesus", but they took it out because the character playing the terrorist is Jim Caviziel, who played Jesus in Passion of the Christ. The filmmakers did not want to get a laugh out of that line which it inevitably did in test screenings. (01:06:10)
Audio problem: Before the Tortuga bar brawl the musicians are shown playing their instruments. When Elizabeth says, "I just wanted to have the pleasure of doing that myself," it is quiet in the bar, but the violinist is seen happily playing directly behind her and no sound is heard. (01:08:20)
Audio problem: When Scott is making a distraction, he says, "Well, this show stinks." But his mouth is saying, "Well, this show sucks." Done in order to keep the G rating, I presume.
Audio problem: In the scene where the guys are looking at Olivia, talking about her nodding at Sebastian, Sebastian says something, then his phone rings. He continues mouthing something over the ringtone, but no sound is heard.
Audio problem: When Hilary Duff is in prison with the three ladies, she asks for something grainy to remove the make-up the women are wearing. The large lady says that she has an "egg roll or bagel in the bar" and to just give her a minute. But if you look closely at the lips, she says something else as to where the product is hidden.
Audio problem: When Joanne is pulling out her bra strap, the song that is playing hits a line with the words, "If we're f***ed up, you're to blame (but it actually says the whole word). Whenever the song hits that line again, the word is entirely censored.
Audio problem: When they first enter the building they are going to use for the fake school, Bartleby tries to put a board back in the ceiling, and a body falls to the ground. Schrader screams, but the scream is heard before he actually opens his mouth. You don't see his mouth open until the camera pans into his character, but the scream is audible about a half-second before the camera movement.