Batman: Assault on Arkham

Batman: Assault on Arkham is a 2014 American direct-to-video animated superhero film featuring the DC Comics character Batman and the 21st film of the DC Universe Animated Original Movies. Loosely based on the Batman: Arkham video game franchise, the film was directed by Jay Oliva and Ethan Spaulding, produced by James Tucker, and written by Heath Corson. The story focuses primarily on the Suicide Squad, particularly Batman villains Deadshot and Harley Quinn with Batman himself in a supporting role. In the film, the Suicide Squad, consisting of six criminals, are dispatched by Amanda Waller to break into Arkham Asylum, where they must contend with the asylum's inmates and Batman as they attempt to complete their mission to reclaim information stolen by the Riddler.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.