This trailer is for the second animated movie to adapt Frank Miller and Klaus Janson's The Dark Knight Returns. I've not seen part one yet, but I'm much more curious about part 2 anyhow. Perhaps I'll wait until I can watch the whole story in one sitting. It's a habit I've picked up from TV, really, where I've turned into quite the box-set muncher.
That should be released in late February. Or, to put it another way, you'll have to come up with another, better idea for a Valentines gift.