I really do not care for animated movies, but this one was pretty good. Normally, I would not even CONSIDER watching an animated movie, but this one interested me (as the title, is that of a song have heard for years). I took a chance and did not regret it. I won't say it's a masterpiece, but it is worthy of respect. It is pretty much the way the song goes. As each detail of the story is demonstrated, a clip of the song is played. Also, there are several new songs introduced that create originality. Grandma has a store, A business man wants to buy it, but she does not want to sell. Cousin Mel plans to steal the store from Grandma, but all things change because "Grandma Got Run Over By A Reindeer"!