In anticipation of this summer’s animated adaptation of Batman: The Killing Joke, the iconic voice of the Clown Prince of Crime himself, Mark Hamill, released a 10-minute sneak peek of the film, with commentary by cast and crew.

Kevin Conroy and Mark Hamill will reprise their roles as Batman, and the Joker, respectively, in the animated adaptation of Alan Moore and Brian Bolland’s iconic and controversial graphic novel. Both actors have become the definitive voices of Batman and the Joker for an entire generation of DC Comics fans, playing the roles in decades of animated series, films, and video games.

Alongside Conroy and Hamill will be Tara Strong (Powerpuff Girls, Batman Beyond: Return of the Joker) reprising her role as Barbara Gordon/Batgirl, and Ray Wise (Twin Peaks, Marvel’s Agent Carter) as Police Commissioner James Gordon.

Batman: The Killing Joke is a one-shot graphic novel written in 1988 by Alan Moore and illustrated by Brian Bolland, and is one of the most acclaimed, yet controversial, Joker stories ever told, due largely from the depictions of brutal violence against Barbara Gordon, as well as its giving the Joker a more solid origin story. When first written, DC Comics had long considered it to be non-canonical, considering it to be an Elseworlds story but the book found favor with fans, and soon found its way into the mainstream DC Universe, managing to stay there after DC’s New 52 reboot. The book received the Eisner Award in 1989, landed Alan Moore a Best Writer Award the same year, and often finds its way onto banned book lists from time to time. You can also find bits and pieces of “the definitive Joker story” scattered among Batman video games, films, and other comics in the DC universe.

Warner Bros. Home Entertainment will host the world premiere at San Diego Comic-Con this summer, with the film to be released sometime this summer after SDCC.

You can see what an animated The Killing Joke will look like below.