The world is still reeling from the announcement of Ben Affleck as Batman in Warner Brothers’ upcoming Superman/Batman movie. While many people are furious about the announcement, Ben Affleck is a strong, although unorthodox choice for the Dark Knight.
First of all, this fan backlash about a bat-related casting is not new. People were furious about Heath Ledger being cast as the Joker, which in hindsight was a perfect choice. Since Christopher Nolan is also involved in the upcoming collaborative superhero movie, this casting could turn out to be great, even if Nolan is playing a smaller role in the development process.
The Affleck backlash seems to surround the actor’s performance in “Daredevil.” While it may not be the greatest superhero film ever, Affleck has grown a lot as an actor since then. No one really complained about his performance in “Argo.” 
His role in “Daredevil” is not the only thing going against him. People have mentioned that his casting is not the last time that a big actor played Batman. George Clooney’s casting in the atrocity of “Batman & Robin” is being used as an example of a star falling flat in the role. 
While Clooney was uninspired as Batman, the script, plot and directing all went against it. The Clooney example is a dud, just like the movie he starred in — uninspired and almost pointless. 
But “Daredevil” wasn’t Affleck’s only turn as a comic book character. He also technically played a superhero in “Hollywoodland” when he played George Reeves, the original Superman on television — a role for which he was nominated for the Best Supporting Actor Golden Globe.
In addition to his acting credentials, Affleck is also a renowned director with a proven track record, including “Argo,” which won the Academy Award for Best Picture. In August of 2012, it was reported that Warner Brothers approached him to direct the still-gestating Justice League movie. He later said that was false, but that he would consider it if the script was good. 
The upcoming Superman/Batman movie could be Affleck’s entrance into the DC Comics’ cinematic universe that would lead into Justice League.