In the LEGO Batman Movie, Joker mentioned to Batman that they’ve known each other for 78 years. This is because the Joker was first created as a character 78 years ago, in 1939. The very next spring, on April 25, 1940, Joker made his first appearance in Batman #1, published by D.C. Comics.
“There are certain characters who hold a special place in the hearts of millions,” Affleck said in a statement. “Performing this role demands focus, passion and the very best performance I can give. It has become clear that I cannot do both jobs to the level they require. Together with the studio, I have decided to find a partner in a director who will collaborate with me on this massive film. I am still in this, and we are making it, but we are currently looking for a director. I remain extremely committed to this project, and look forward to bringing this to life for fans around the world.”