Batman: Under the Red Hood
Really, really good animated Batman movie. Nightwing is in it, Joker, Ra's al Ghul, and "Red Hood", who you at first think is a villain but turns out to be more of an anti-hero. Lots of good action, as well as a pretty personal story for Bats. The animation is OK, it's pretty much what you'd expect. Many of the fight scenes are well choreographed, which is not something I'm using to seeing in many animated movies. There's also some pretty heavy morality here.