So, I've been pondering this for a while. I saw an anime movie quite some time ago, I think it's pretty old, too. The only thing I remember about this movie is that the main character was a badass swordsman who had had a curse on one of his hands that grew up to his arm. He had to return the head of some beast to said beast because it was cursing everything without it's head. If anyone knows the name of this movie, I would be sooooo thankful!(: