THR is reporting Zachary Levi is going to be Earth's mightiest mortal. The actor will star in the DC comic book adaptation Shazam !, which follows a boy named Billy Batson, who can transform into an adult superhero by uttering the magic word "Shazam!" The name is an acronym of the ancient world gods and historical figures Solomon, Hercules, Atlas, Zeus, Achilles and Mercury, from which the big Batson derives his heroic attributes when in adult form. David F. Sandberg is directing Shazam! for New Line. The studio is high on Sandberg and sees him as a homegrown talent after putting out his first feature Lights Out in 2016, and releasing the director's Annabelle: Creation, the latest installment of The Conjuring universe. The $15 million horror sequel has earned a big $303 million worldwide since opening in August. Sandberg is directing Shazam! from a screenplay by Henry Gayden and Darren Lemke. Annabelle: Creation producer Peter Safran is reuniting with Sandbe...