Deliberate "mistake": When the kid and the coach are throwing the little boxes of corn flakes in the air the kid's last couple of boxes were pre opened.
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Mistakes
When the coach is tape recording the little kid, he gets a drop of soda on the tip of his nose. In the next shot it's gone and the kid's nose is dry. See more...
Mysterious Skin mistakes
Continuity: When the coach is tape recording the little kid, he gets a drop of soda on the tip of his nose. In the next shot it's gone and the kid's nose is dry.
Factual error: In the scene where they all meet up for Christmas dinner, later they drive to the park and there are green leaves on the trees.