Goofs

Robert knocks the head off a snowman, but in the next shot its back on top for him to knock off again.

During the football scenes Pete can be seen wearing both number 14 and 88 during the same plays.

In later iterations of the football game when Pete has secured a mascot and matching uniforms with their names on it, they used shots from earlier iterations of the game where they had mismatched uniforms.

The train that crashes into the army men does not hit the same figures on each replay.

During the football scenes, Pete is seen wearing a t-shirt under his jersey in some of the shots and a sweatshirt under his jersey in other shots of the same game.

The opening credits montage features a decoration with changeable numbers for showing how many "day's till Christmas" (instead of "days") there are.

Although this movie takes place between Christmas Eve and Boxing Day, Kenny announces that the Leonid meteor shower will take place "next week". In fact, the Leonids occur from 6-30 November each year, peaking around 17 November.

Jake is very worried about being benched from football, even though American high school football is generally over by the middle of October. The next season would start practice next summer, with plenty of time for Jake to earn his place back. If he was worried about not making the team next year, he should be talking about it a little bit differently.

In one of the Christmas days. Pete wins some money and buys himself several expensive looking gifts. Being Christmas Day, he wouldn't have found a shop open to buy these gifts.

Kenny (the kid brother) acts very smart but gets some pronunciations wrong, such as stressing the "o" and not the "pe" in "Cassiopeia" and saying "leonoid" instead of "leonid" meteor showers.