Other mistake: When Don and his father are driving home and Don's father throws his ring out the window, Don gets out to search for the ring and you can see wet marks on his shins from kneeling on the wet road. However, he hasn't knelt down yet. It must have been from previous takes. Also, when he gets up after kneeling down, his jeans are dry. (01:01:50)
Other mistake: Just before the second period against the USSR, we see a couple of shots of the benched Soviet starting goaltender Vladislav Tretiak. His hair is dry and combed, and there is no sign of perspiration, despite having just played the whole first period. After the game is over, we see a shot of the Soviet players watching the Americans celebrate. This time Tretiak's hair is wet and his face is sweaty. Shouldn't it be the other way around (i.e., hair is wet after playing one period, then dry after sitting on the bench for two periods)?
Other mistake: The timing for the Hall of Fame vote is all wrong. The vote and the announcement for the Hall of Fame happen in December and January, not during the middle of the season.
Other mistake: When Francis was talking to Whittier about violating himself, Monica and Penelope were talking at the back. They looked as if they were talking to someone, but when the varsity cheerleading squad came, there were only four of them. What happened to that person they were talking to?
Other mistake: Peter took the $100,000 bribe White gave him and turned it into $5,000,000 by betting on his team. He did this, so he could buy enough shares of Global Gym stock and take over the company, and in the process kick out White as the CEO. The problem is $5 million wouldn't be near enough to gain control of the company, to be public its value would have to be at least in the tens of millions.