Visible crew/equipment: When the minibus arrives at the running track the camera crew are reflected in the windows.
Continuity mistake: At the court Robbie and Mike walk up the stairs - Derek stares at them. The other people on the stairs and in the hallway change position between shots.
Continuity mistake: At the class party, Dipti is dancing to Natalie's left. She says "we should have had a party for the whole of the third year." The angle changes and another girl is dancing between Natalie and Dipti.
Revealing mistake: After Mike has finished giving evidence at the court, as he comes down the stairs you can see Mauler and Trev waiting behind the door for their cue.