In the last audition scene, Kelly and Turbo are seen ripping off their sleeves, but in a brief long shot, their jackets are still on.
When Turbo and Ozone go to sit down after practicing their dance moves towards the beginning of the movie, Ozone is pulling out a cigarette of his pocket in the next shot as hes sitting with Turbo it instantly appears in his mouth.
In most of the shots of the Judges at the end of movie their cigarettes appear unlit or lit and vary position from being up their mouth to on the table as the dance scene progresses.
When Franco walks up to the Main Judge, he's holding his cigar away from his chest and in the next shot when he tells Franco to "Go Away" its up to his face.
During Turbo's dance with the broom, the wire around his hand is clearly visible in the mid shot of him levitating the broom for the first time.
During the final audition, before Ozone rips his shirt sleeves out, it is clearly visible that they have been already cut partially to allow the actor to easily rip them out..
In the second dance battle scene in the club, Ice-T can clearly be seen rapping/talking into the microphone in the background yet we do not hear him at all. All that can be heard is music and the main characters dialog.
Towards the end of the movie when Kelly and Ozone are arguing at Venice Beach, the last shot of that scene as they are walking away; Ozone says, "I want to show you what real dancing is about." You can see that Ozone's lips don't move, but you can still hear him say something.
When James and Adam are watching Kelly, Turbo and Ozone dancing at the Radio-Tron, you can hear "Right on!" But neither Adam nor James lips move.
When Adam and Kelly first meet Ozone and Turbo at the beach Ozone is heard saying "Hey Adam!" In that shot of him saying that, he actually smiling then, in the next shot talking.
At the final audition when they are hugging each other and the camera spins around them you can see the camera operator or his assistant on the right.
When Ozone, Turbo and Kelly pose in the last shot of their Dance Montage, the actors marker is on the bottom of the floor.