[MissTeeks]

An article from Variety talking about the reaction when Michael Keaton was first announced as Batman:

http://variety.com/2013/voices/colum...on-1200587317/

What distinguished Burton’s “Batman,” ultimately, is how dark and serious it was, in a stark departure from the 1960s TV series and the comic villains in “Superman.” Those qualities were precisely what was lost as the franchise shifted into the hands of Joel Schumacher, despite replacing Keaton with two actors, Val Kilmer and George Clooney, ostensibly much better suited to the role in terms of looks and physical presence.
So while it’s easy to focus on the leads, what’s really important is the director and tone. And with “Man of Steel’s” Zack Snyder set to direct the upcoming Superman-Batman combo, it’s not like we should expect a bunch of “Biff! Wham! Pow!” graphics popping up on screen.

It’s easy to forget, though, how outlandish and unexpected casting Keaton seemed at the time. As the actor told the Los Angeles Times in 2011, “There was no guarantee that any of this was going to play correctly when it was all said and done. There had never been a movie like it before. There was a lot of risk, too, with Jack looking the way he did and me stepping out in this new way. The pressure was on everybody. You could feel it.”
Come to think of it, if Twitter had existed when Keaton was cast, the service might have exploded.

Tim Stack‏@EWTimStack15h

I mean Mr. Mom played Batman and it all worked out fine. Let's just all chill the eff out. #Batfleck