When Brandon and Lydia are re-shooting the scenes for the show Sean comes into the room where they are kissing and throws water on Brandon. The first time the water is thrown on Brandon his shirt is already wet even though it was dry just before that when they started kissing. The second time the water is thrown on Brandon his shirt is dry before the water is thrown showing the second shot was actually the first one and the supposed first shot was actually a follow up shot.
Kelly missed a step in the dance when the 3 girls are singing and dancing at the Peach Pit.