DC's long-gestating live-action movie Justice League Dark is undergoing a "script polish" from Gerard Johnstone.

One version of the Justice League Dark lineup.

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As reported by Deadline , Johnstone was one of the potential directors in the running to take the helm of the darker take on DC's heroes, following Doug Liman's departure from the film to direct Lionsgate's upcoming sci-fi adaptation Chaos Walking.While DC have chosen not to announce a new director (or any casting) as of yet, they were reportedly impressed enough with Johnstone's presentation and his work on the 2014 film Housebound that they've asked him to take a look at the script.It's important to note that the wording "script polish" implies that they're just looking for Johnstone to make some revisions to the script as it currently exists as opposed to a full rewrite.Justice League Dark, a franchise which traditionally features darker, more supernatural DC heroes such as Constantine, Swamp Thing, Deadman, Zatanna and Etrigan the Demon, has been in development since at least 2012, when it was announced that Guillermo del Toro was developing the concept. He turned in a version of the script back in 2014 but later left the project. The current version of the film was penned by Michael Gilio but Warner Bros. were reportedly "underwhelmed" by potential directors.There have also been some legal rumblings following Universal's announcement of "Dark Universe" as the official title of their monster movie franchise , a title Warner Bros. and DC already use for Justice League Dark and a series of comic books.If the wait is getting to you, you should check out the animated Justice League Dark movie that dropped earlier this year. We thought it was "so good it should be used as the blueprint" for the live-action version.

Matt Davidson is a freelance writer for IGN who will do whatever it takes to get Matt Ryan back in Constantine's trenchcoat and keep him there forever. Check him out on Twitter