The Flash (2023) | Behind-The-Scenes Development on a film based on the DC Comics character the Flash began in the late 1980s when Warner Bros. Pictures hired television writer Jeph Loeb to write a screenplay, before DC Comics president Jenette Kahn hired him to instead write a revivial of the comic book Challengers of the Unknown (1991). After impressing Warner Bros. with his script for the DC Comics–based film Batman Begins (2005), the studio offered David S. Goyer the choice to work on a film