According to Variety on Wednesday, "Lost" and "Turbo" writer Darren Lemke was chosen to write the script for the "Shazam" comic book movie in the DC Cinematic Universe. It was recently announced by Dwayne Johnson via Twitter that he has been cast as the anti-hero to Shazam, Black Adam. Apparently, New Line Cinema's president, Toby Emmerich, found Johnson's take on the character to be compelling and fun as he touted the anti-hero is a complex character. Emmerich also mentioned it's the villain that often "makes the movie" in the comic book films.
Black Adam, though he has villainous characteristics about him, is actually someone who is just trying to clear his name. This would likely been the tie into and suggestive of the hash tag that Johnson left which said, "#TheAntiHero", which could suggest, similar to Loki in the "Thor" movie, to have redeeming qualities.
Producers on deck for this movie are Johnson and Hiram Garcia. New Line's Emmerich touted The Rock as someone quite beloved and recognizes him as an appropriate pick for a comic book film. That Johnson has a certain "swagger" about him that's synomous with such roles in these type of films and a charisma that's does not go unnoticed.
“We Love Dwayne and have had nothing but success with him over the years,” said Toby Emmerich, President and COO of New Line. 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 the past, Johnson has been teasing around online about portraying either the Shazam or Black Adam character and others were expecting him to be a big announcement about him at the 2014 San Diego Comic Con. This was thought to come about during his "Hercules" promotion, but no such thing did ever happen. Not a clue.