Batman: Under the Red Hood is a 2010 animated superhero film based on the Batman comic book storyline "Under the Hood" by Judd Winick. The film features the return of the Joker, who is causing chaos in Gotham City, and the emergence of a new vigilante known as the Red Hood. Batman must confront his past mistakes and face off against the Red Hood, who has a personal vendetta against him. The film explores themes of morality, redemption, and the consequences of one's actions. It received critical acclaim for its storytelling, animation, and voice acting.