Visible crew/equipment: When Priscilla tells Jake that she broke up with him for the weird guy with the floating plastic bag, you can see a string that is suspending the plastic bag in the air. (00:09:50)
Audio problem: In the scene by the ambulance after the football game against the Wildcats, Jake is seen walking in his football cleats. During this time, it is quiet. Football cleats are extremely loud to walk in.
Continuity mistake: In the scene where Jake asks Janey to the prom, Ricky puts his fist to his mouth after she says she will go with Jake. It cuts to a shot where he has nothing in front of his mouth. (00:51:10)
Continuity mistake: At the end of Jake singing "Janey's got a gun," he has the microphone angled away from the microphone stand. The shot changes to the guards giving Janey a taser. When it comes back to Jake, the microphone is angled back toward the microphone stand. (00:32:55)
Continuity mistake: When Mitch is giving the the letter to Amanda, take a look at her hairs: it switch places between scene. (01:29:01)
Answer: The song is called "Yoo Hoo" by Imperial Teen. The same song plays in Jawbreaker when Rose McGowan is leading her friends down the hall, which is of course, the scene that Not Another Teen Movie is mimicking.