Flash Johnathan Goldstein John Francis Daley

Flash Suicide Squad

Joby Harold has been tapped to do rewrite “The Flash” script, TheWrap has learned.

The film, starring Ezra Miller as the titular speedy superhero, was originally set for a March 16, 2018, release. But it has been delayed as the studio wants to get the script right and is not rushing the project.

Director Rick Famuyiwa left “The Flash” over creative differences last year. A similar thing happened when Michelle MacLaren left the studio’s “Wonder Woman” over creative differences in 2015. She was eventually replaced by director Patty Jenkins.

Also Read: 'Justice League': Ben Affleck on Film's Tone Shift from 'Batman v Superman'

Fans got their first glimpse of Miller as the Flash in “Batman v Superman: Dawn of Justice” last year. He also plays the part in the forthcoming “Justice League,” and appeared briefly as the fast comic book character in the summer hit “Suicide Squad.”

Harold’s credits for the studio include “King Arthur: Legend of the Sword,” “Robin Hood,” as well as a “Twilight Zone” film.

Following poor critical reception and sagging box office of “Batman v Superman,” Warner Bros retooled its comic book-based slate coming out of its DC Films unit.

Also Read: 'Game of Thrones' Star Ciaran Hinds Cast as 'Justice League' Villain Steppenwolf (Exclusive)

The studio switched things up since then, putting executive vice presidents Jon Berg and Geoff Johns in charge of its DC Films unit.

Kiersey Clemons is attached to play Iris West, and Billy Crudup will play Miller’s father.

Harold is repped by CAA.

Warner Brothers had no comment.

Variety first reported Harold’s involvement with the project.

DC Films 'Justice League': What We Know So Far (Photos)

"Justice League" is exactly a year away as the film will be released in theaters on Nov. 17, 2017. Here's what we know so far.
Warner Bros.
Ben Affleck will return as Batman and have an upgraded Tactical Batsuit along with enhancements to the Batmobile.
Warner Bros.
Gal Gadot will return as Wonder Woman and work with Batman to recruit other metahumans to fight off an intergalactic threat.
Warner Bros.
Henry Cavill will return as Superman after he “died” in the climactic battle of "Batman v Superman: Dawn of Justice." Exactly how, remains unknown.
Warner Bros.
Ezra Miller will star as Barry Allen a.k.a. "The Flash" and feature a costume created by Bruce Wayne's Wayne Tech.
Warner Bros.
Jason Momoa will star as Aquaman and play the metahuman most reluctant to join the "Justice League." We will also get a first look at Atlantis.
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Ray Fisher will star as Cyborg whose suit will be made from alien technology. Cyborg has two modes: Battle Mode and also a civilian mode.
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Amber Heard will star as Mera, Queen of Atlantis and will reprise her role in the "Aquaman" standalone film.
Warner Bros.
J.K. Simmons will play Gotham City's Commissioner Gordon and alert the "Justice League" about the Alien threat which is kidnapping scientists around Earth.
Warner Bros.
Darkseid's presence will loom large in "Justice League" as the film's prologue introduces the New God while ancient Amazonians, Atlanteans, and pre-historic humans fight him off Earth.
DC Comics
New God Steppenwolf will be the main villain in "Justice League" and be portrayed by "Game of Thrones" Ciaran Hinds as TheWrap exclusively reported.
Getty/DC Comics
A member of the Green Lantern Corps. will be seen in "Justice League" in a key sequence.
Warner Bros.
There are three motherboxes on Earth in the care of the Amazonians, mankind, and the Atlanteans. Steppenwolf comes to Earth to retrieve them.
Warner Bros.
Assassin Deathstroke will make a small cameo in "Justice League." Joe Maganiello will play the character before reprising the role in "The Batman."
Warner Bros.
If you enjoyed this gallery, check out 14 Biggest Superhero Movies Opening in 2017, From ‘Power Rangers’ to ‘Wonder Woman’ (Photos)