When Mr Sugden is dancing down the pitch in the early part of the match, he shouts various instructions and admonitions to Speed. Speed was on Tibbutt's team and was his first choice.
In the football match, Jim is selected to play for Sugden's team but ends up protesting about the allowed goal his captain, Mr Sugden, scores.
During the classroom scene with Mr. Farthing, Billy writes the word "Jesses" on the blackboard. The writing style clearly changes between cuts.
When the PE teacher is explaining the meaning of the word "stimulating" to Guthrie, he spells the word incorrectly. However, this was clearly done on purpose for the sake of the film.
Member of crew visible (with a beard) in the scene where Mr. Sugden is selecting the football teams.