Warner Bros. upcoming Aquaman movie has found an additional screenwriter in David Leslie Johnson.

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The extent to which Johnson is involved in the project, however, has yet to be detailed, as writers Will Beall and Kurt Johnstad were both penning separate scripts before Johnson was brought into the fold.One source told The Hollywood Reporter that Johnson will serve as "a third rail on the development track," but other sources have told the outlet he's instead streamlining the project with film director James Wan.Johnson has worked with Warner Bros. before, having written both Wrath of the Titans and Red Riding Hood for the studio. He's also no stranger to Wan, having worked with the director on The Conjuring 2: The Enfield Poltergeist.Aquaman, which stars Jason Momoa as the underwater hero , will open in theaters on July 27, 2018.

Alex Osborn is a freelance writer for IGN. You can follow him on Twitter