Continuity mistake: When the argument starts between Glenroy and John Eastlake, Mr Fowler stands between them. Next shot Sue Shallcross is standing between Glenroy and Eastlake and separates them. Mr. Mcguffy then stands next to Sue, next shot Mr Fowler is standing between the two boys, then the angle changes and Sue and Mr Mcguffy are standing between Eastlake and Glenroy again, with Fowler standing next to Eastlake.
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.