Batman: The Killing Joke (2016) is a dark, animated adaptation of Alan Moore's iconic graphic novel, delving into the psychological warfare between Batman and the Joker. The film follows Batman as he hunts the escaped Clown Prince of Crime, who launches a brutal attack on Commissioner Gordon and his daughter Barbara (Batgirl) to prove a twisted point about madness and despair. This act forces Batman to confront the thin line between sanity and chaos, mirroring the Joker's own tragic origin story.

Directed by Sam Liu, the film features standout voice performances from Kevin Conroy as Batman and Mark Hamill as the Joker, reprising their legendary roles with chilling intensity. The animation captures the gritty, noir-inspired aesthetic of the source material, blending action with deep psychological drama. While the film expands on Batgirl's role in the first act, it stays true to the core narrative's exploration of trauma and morality.

Viewers should watch Batman: The Killing Joke for its mature themes, compelling character studies, and faithful homage to one of comics' most influential stories. It's a must-see for fans of DC animation and those interested in the darker facets of superhero storytelling, offering a gripping, thought-provoking experience that questions the nature of heroism and villainy.