So I had a late night thought about Christmas songs before going to bed causing me to remember an oldish Christmas movie. The premise of the movie is that the main characters’ (a pair of siblings if I remember correctly) grandparent (don’t remember which one) got run over by a reindeer, so the siblings’ parents are trying to sue Santa. The two siblings go out to solve what happened and then I don’t remember anything else except at the end of the movie another elderly person gets run over by Santa’s sleigh. tldr: movie based off of song “Grandma got run over by a reindeer”, to which I wanna know the name of the movie.