Goofs

When Wilma is singing in the Reindeer Bar, Dasher's horns pass through the baguettes hanging on the ceiling. The mistake is visible in six shots while the song is playing.

When Niko and Saga warn the other reindeer that wolves are coming, Niko's grandpa comes in and asks "Are you sure they didn't follow you?" At that moment, his right horn can be seen passing through the leader's horn geometry.

In the film Wilma is said to be a lumikko (weasel), but she is actually a kärppä (stoat). The difference: a kärppä has a black tail-end and a lumikko has an all-white tail.

When Wilma and Julius use an old log to block the river flow, Julius jumps on it in search of Niko, but suddenly an ice block hits the log, causing him to lose his balance. As soon as the shot changes, Julius's left hand penetrates into the trunk.