Exorcist showrunner to pen Stephen King’s The Tommyknockers movie Variety reports that former The Exorcist showrunner Jeremy Slater is set to write the screenplay for Universal Pictures’s film adaptation of Stephen King’s The Tommyknockers. James Wan and Michael Clear (The Nun, Annabelle: Creation) will be teaming up with Roy Lee (IT) to produce the film. RELATED: Stephen King’s The Tommyknockers Lands at Universal “I’m pretty sure this is the first book I ever bought with my own money.