from imdb bio:
In 2007, he was set to play Bruce Wayne/Batman in a ''Justice League'' film, under the direction of George Miller, but the project was canceled. He was considered by Warner Bros. for the part of Batman in Batman v Superman: Dawn of Justice (2016), which went to Ben Affleck and when Affleck left, he was considered for the role again in The Batman (2022) which went to Robert Pattinson.
Yup, makes you realise how vulnerable movies are to principle casting.
shareI wonder where it would have meant for the Nolan movies going forward or future DC movies if George Miller got to make a Justice League movie after all.
shareHe also comported himself the way people who have grown up with money often do: with confidence and charisma, or if you’re being less generous, like a little bit of an asshole. Hammer had just been cast in George Miller’s doomed DC Comics adaption Justice League: Mortal and was a perfect young Bruce Wayne, even if some in the press remained dubious. “Armie Hammer (his actual, SAG-registered name) will play Batman,” the St. Petersburg Times reported. “We guess being 6-foot-5 and having a weird name makes you qualified to play the Dark Knight.”share
When the movie was called off, Hammer and the other stars — including Adam Brody as The Flash, DJ Cotrona as Superman, and Megan Gale as Wonder Woman — were already deep in pre-production training. Suddenly, their path to instant stardom was over. In the aftermath, the careers of those other would-be superheroes (save Common, slated to play Green Lantern, who had an established musical career of his own) failed to bear fruit; Brody, arguably the most famous at the time of casting, has all but disappeared from Hollywood. But not Hammer, whose career has evaded certain doom for nearly a decade.