Dwayne Johnson has played with Twitter for almost a year now. He has already teased his meeting with DC, and eventually he has made his way to the "Shazam" movie. The former WWE star narrowed down the two major roles: Shazam and Black Adam-and it seems he has made his choice.

"The Rock" used his social media of choice, Twitter, to make another cryptic announcement that has more clarity than his usual fare.

"Kneel at his feet or get crushed by his boot." My honor to become.. #BlackAdam #TheAntiHero #DCComics pic.twitter.com/Qk55eNf3R7

— Dwayne Johnson (@TheRock) September 3, 2014

Now, it's not just the muscle-bound actor. Variety has also vouched for his role:

"Though Dwayne Johnson hasn't been shy about teasing his potential involvement in New Line Cinema's 'Shazam' movie, the superhero comicbook pic now looks closer to achieving lift-off.

Sources tell Variety that Darren Lemke is set to write the script with Johnson attached to star. Johnson will play Black Adam, who in recent issues of the DC comicbook, is more of an anti-hero trying to clear his name than a villain.

Johnson and Hiram Garcia are also producing.

Toby Emmerich, President and COO of New Line: '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.'"

The "Shazam" movie is expected to take one of the slots in Warner Bros/DC's 10 film slate that starts with "Batman V Superman: Dawn of Justice" on March 25, 2016. However, it is still not clear which of those slots the film is taking. There is also the issue of casting the title character.

We'll keep you posted on further developments.