Warner Bros will need to find a new director for The Flash, as Pride And Prejudice And Zombies and Abraham Lincoln: Vampire Hunter author Seth Grahame-Smith has left the superhero tentpole film over creative differences, Deadline has confirmed. Grahame-Smith first became attached to direct the film in October, speeding past candidates that included WB’s original choice, Phil Lord and Christopher Miller, who are still on as producers.

We’re told Grahame-Smith will remain involved in the production despite leaving the director’s chair, and that an immediate search for a replacement is underway. (Lord and Miller will not be in the running however, as we’re hearing their dance card is too full with the Han Solo standalone movie to direct The Flash.) There’s still plenty of time, as The Flash is (for now) scheduled for release in 2018 as the sixth installment of the DC Extended Universe (WB’s answer to the Marvel Cinematic Universe).

Warner Bros was taking an enormous chance on Grahame-Smith, who would have made his directorial debut with The Flash. Whether WB will hand the reigns of the film over to another green recruit remains to be seen, as today’s news comes amid continuing rumors of a major shake-up with its DC Comics-based films following the divided critical and audience reception to Batman v. Superman: Dawn Of Justice.