Continuity mistake: The last record that Pogo plays is "True" by Spandau Ballet. When he first starts playing it the record label is red; after Stewpot asks Pogo to play the song again the record label is black.
Continuity mistake: Mr McGuffy is walking down the corridor - behind him is a girl dressed in pink, and walking towards him is a boy in a black jumper with a white stripe on it. Mr. McGuffy enters the classroom to speak to Pogo - when the angle changes to inside, the girl in pink doesn't walk past the open door but the boy does, even though he had already passed the door in the previous angle.
Continuity mistake: In the first scene of the disco with Glenroy as the DJ, some of the kids dancing can also be seen in the next shot of kids waiting in the queue to pay to get in.
Revealing mistake: At the end when the credits are rolling, Spandau ballet's song "true" is heard playing, but if you look at the disco unit the turntable is revolving, but the arm is not on the record.