When Lydia speaks to Leroy in the dressing room, each cut and reverse shows Leroy's left hand with his bottle of juice changing position, from being up in the air, to down on the table holding the juice, to having his arms folded and not holding the juice at all.
When all the former students arrive and Bronwyn Thomas appears, a loud voice, possibly Debbie Allen, can be heard shouting "Bronwyn" instead of her character's name, Michelle.