Hollywood star Dwayne Johnson has revealed that if it wasn't for him the titular character that he'll play in 'Black Adam' could've debuted in 2019's 'Shazam!', had Warner Bros. went ahead with its original plan. According to Variety, the 'Shazam!' movie went into development in 2014 and its script originally included origin stories for both the title character and Black Adam.

Both the super-powered fictional individuals have a shared history in the DC comics, so it seemed fitting to launch their big screen iterations together in one film. However, Johnson disagreed with this. Speaking about this to Vanity Fair magazine, Johnson said, "When the first draft of the movie came to us, it was a combination of Black Adam and Shazam: Two origin stories in one movie."