The anime movie Batman Ninja has an official trailer. The Warner Bros. film, directed by Jumpei Mizusaki, places Batman and his villains in medieval Japan. Batman, of course, is skilled in a hundred ways of fighting.
The trailer is a non-stop flipbook of gorgeous artwork. Look closely, and you'll see Joker, Catwoman, Harley Quinn, Deathstroke, Nightwing, Two-Face, Alfred, and Robin. Batman Ninja will be coming to a theater near you sometime in 2018. -via Metafilter