Frank Grillo had no idea who John Cena was before he was cast in "Peacemaker" Season 2, much to his son's dismay.

John Cena's Peacemaker is a hit on HBO, but will the superhero get his own movie? "I actually know the answer to that question," series director and DC Studios boss James Gunn said. "And I am not at liberty to say under penalty of the Safran punishment,