He tweeted an image of the baddie holding the superhero in a headlock with the caption on Wednesday: "Kneel at his feet or get crushed by his boot." My honor to become..#BlackAdam #TheAntiHero #DCComics".
He said, "I am putting my heart and soul and my bones into this role."
Toby Emmerich, President and COO of New Line said, "We love Dwayne and have had nothing but success with him over the years."
"When I look at Dwayne both off screen and on screen, he is such a larger than life character and it just made perfect sense to me that we put him in a DC comic movie."
"You look at these comic book characters and they have this certain swag and charisma that Dwayne carries with him where ever he is so that’s why this always made sense."
In most versions of his origin story, Black Adam was originally named Teth-Adam. He is the immortal, power-mad son of an ancient Pharaoh.
As described on DC's website, Black Adam is "a champion turned villain whose quest for dominance over all magic drives him to destroy anything that stands in his path."
Variety reports production has yet to being, but Darren Lemke is set to write the script for the film.
No production date has been set, as Darren Lemke has just been brought on to write. But once a script is delivered, DC is likely to move fast to get the film quickly up and running .
The Shazam movie will be produced by New Line, a subsidiary of Warner Bros.
But the film has still yet to be announced officially by Warner Bros., the parent company of DC Comics.