When Dwayne Johnson was first announced to be playing Black Adam in November 2007, both the project and the actor’s career were in a very different position from where they find themselves now. The former professional wrestler wasn’t even the star of his own movie, but he’d be the villain in Shazam! instead, which was set to be helmed by The Longest Yard and Get Smart director Peter Segal, with a script from John August. At the time, The Rock’s Hollywood career was in its infancy, and he’d just come off the back of Richard Kelly’s infamous box office bomb