Ben Affleck's Batman movie will remain as a "What if"? in the annals of superhero movies. Affleck was attached to direct and star, but as DCEU fell apart, Affleck departed the project, handing over the directors helm to Matt Reeves and giving the role of Batman to a younger Robert Pattinson.
We now have some idea of the tone and content of his abandoned Batman movie. According to his Live by Night cinematographer Robert Richardson, Ben Affleck;s version of the Batman would have explored Batman's grip on sanity and focused on Arkham Asylum, the institution for the criminally insane that houses the superhero's rogues gallery when they're not out doing crimes.
"Well, he was going into the more insanity aspects" said Richards,"He was entering more into the Arkham, he’s going into where everyone was bad, That’s where we were going. I was very interested in that one.” But Richardson also notes, “There was a script, but not a loved script. There was a lot of work he was doing to it to change it.”
Sadly, we'll never see this Arkham-centric Batman movie on the big screen. Ben Affleck confirmed his exit on the Batman franchise this March, telling Jimmy Kimmel, "I tried to direct a version of it, and worked with a really good screenwriter but just kinda couldn’t come up with a version… that couldn’t crack it, and so I thought it was like, you know, time to let someone else take a shot at it. They got some really good people, so I’m excited."
We don't know what Reeves has in store for the franchise, but hopefully Affleck will go on the record some day to talk about his vision for what his solo Batman movie would have been.