batman was cocreated by bob kane
 other potential projects by october 2022 reeves was meeting with directors and writers for several films and series that were in early development and centered on members of batmans rogues gallery such as scarecrow clayface and professor pyg
reeves knew early on that the film would draw from batman the long halloween 199697 and its sequel dark victory 19992000 by jeph loeb and tim sale featuring batman hunting a serial killer who would reveal this cooperation between the people who are legitimate pillars in the city and the criminal element in the city