Shiv Panikker on Instagram: "The Dark Knight | Behind-The-Scenes On 31 July 2006, The Dark Knight was officially announced by Warner Bros. Pictures and Heath Ledger was cast as the Joker. Director Christopher Nolan had met with Ledger over the years for different roles, including the part of Batman in Batman Begins. Ledger explained that he was not interested in working on superhero films; However, later impressed with Batman Begins, Ledger sought the part of the Joker in its sequel. Nolan cast