It would be fair to say that Black Adam was Dwayne “the Rock” Johnson’s attempt to become something larger than life in Hollywood. The action star would have made his mark as a superhero in the DC that was worthy of taking up the mantel of leading the new era of superhero films from Warner Bros. into a new direction that Superman and Batman couldn’t do.The problem, amongst several others, was Johnson.
Source: The Rock’s Ambitions with ‘Black Adam’ Backfired on Him and DC