While Dwayne Johnson has been officially attached to play Black Adam in the DCEU since fall 2014, in the late 2000s, he was being lined up to play the character in an earlier incarnation of Shazam!. So obviously this has been a long time coming, and once Johnson is done shooting Netflix’s Red Notice, then he’ll move to Black Adam. While specific Black Adam plot details haven’t been revealed yet, along with the main character fighting the Justice Society in what looks like the present day, we’ll also learn about his origins in ancient Kahndaq.
Article source: https://www.cinemablend.com/news/2553806/black-adam-producer-props-up-the-justice-society-while-teasing-dwayne-johnsons-dc-debut