'The Flash'
A promo poster of the TV series "The Flash." Facebook/The Flash

Seth Grahame-Smith recently quit the set of the upcoming film “The Flash.” Fans are concerned that the movie’s March 2018 release date may be delayed.

Grahame-Smith was previously slated to be the director of the superhero movie, but is leaving the Warner Bros. studio due to “creative differences.”

According to the Hollywood Reporter, “The Flash” was supposed to be Grahame-Smith’s directorial debut. He is best known for being the author and screenwriter for movies like “Pride and Prejudice and Zombies” and “Abraham Lincoln: Vampire Hunter.” The DC project will still use Grahame-Smith’s script, which was also inspired by Phil Lord and Christopher Miller.

“The Flash” is based on the DC Comics scarlet speedster and was already scheduled to launch on Mar. 16, 2018. Ezra Miller was already cast to star as Barry Allen/The Flash. The “fastest man alive” had an initial cameo appearance in the recent film “Batman v. Superman: Dawn of Justice.” The character will next appear in “The Justice League Part One,” directed by Zack Snyder, which is set to launch in fall 2017.

Although fans were worried that the project may be delayed, or worse, cancelled, due to the current lack of a director, there is still a lot of time for the studio to find a replacement for Grahame-Smith.

Although Grahame-Smith is leaving “The Flash,” he will still work on other Warner Bros. projects. He currently works as a writer of “Lego Batman Movie” and “Beetlejuice 2” under the same studio.

The Mary Sue writes that it is still uncertain what the “creative differences” were, although sources alleged that it may involve Warner Bros.’ push-back against Zack Snyder’s concept of “Justice League” after “Batman v. Superman: Dawn of Justice” was released. There are also rumors that James Wan may exit as director of “Aquaman.”

There are speculations that the conflicts with the directors may have stemmed from trying to strike the balance between the grittiness of the DC Universe and attempting to appeal to a younger audience. There may also be concerns about the storylines and how these can be very different from their comic roots.

The studio has not yet commented on the issue. More updates and details are expected soon.