"Hellboy Animated: Iron Shoes" is a pretty short animated movie at 150 seconds, but it delivers a decent deal of story and action within these boundaries. Ron Perlman voiced the character again in this 2007 film that has its 10th anniversary this year.
At the behest of a priest, our crimson hero goes to an abandoned castle in Ireland, to fight a variation of a redcap. This is the shortest thing found on the DVD of Hellboy Animated: Blood and Iron, and I was surprised to find that something like that, literally only 3 and a half minutes long, was actually a story(heck, only about two minutes of it are made up by that, the rest is the introduction by Mike Mignola, and a little of it is credits), not a documentary.
