Director Seth Grahame-Smith has left Warner Bros.' upcoming "The Flash" film. According to The Hollywood Reporter, Grahame-Smith departed the project due to "creative differences."

Prior to his departure, Grahame-Smith wrote a script for the film based off of Phil Lord and Christopher Miller's treatment. Warner Bros. will retrain this script.

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While "The Flash" would have been Grahame-Smith's directorial debut, he was the screenwriter behind the upcoming "LEGO Batman" film. He's also directed for television before, helming a few episodes of his MTV series "The Hard Times of RJ Berger." Additionally, he wrote "Abraham Lincoln: Vampire Hunter" and "Pride and Prejudice and Zombies."

Ezra Miller debuted as the Flash in "Batman v Superman: Dawn of Justice." He'll reprise the role in "Justice League: Part One" as well as his own feature film, the aptly-titled "The Flash."

"Batman v Superman: Dawn of Justice," the latest installment of the DC Cinematic Universe, features an appearance by Miller's Flash and is now in theaters. "Justice League Part One" opens on November 17, 2017, while "The Flash" opens on March 16, 2018.