Actor Dwayne Johnson (Hercules, Fast & Furious 7) has been teasing fans with the possibility that he's been in talks with Warner Bros. to play a DC Comics character -- specifically hinting at Shazam -- and has now added more fuel to the speculative fire. Johnson Tweeted out the following photo of Superman, Shazam and his arch-nemesis, Black Adam, with the playful caption, "Someone's gonna get it...": Someone's gonna get it..