The original project was written by John Hodge, but it fell apart when Warner Bros. focused its efforts on a different King Arthur project dubbed Arthur & Lancelot for director David Dobkin. Arthur & Lancelot once had Joel Kinnaman and Kit Harington attached to star, but it was shelved when the studio deemed that the $130 million budget was $20 million too high. The studio tried to revive the project again in 2012, when Colin Farrell was attached to star, but we haven't heard anything about Arthur & Lancelot since then.
The studio has also previously considered other King Arthur stories such as a remake of the 1981 adventure Excalibur that had Bryan Singer attached to direct, and a "Harry Potter-syle" take on the character produced by Donald De Line that won't be impacted by this new project.
Joby Harold (Edge of Tomorrow) wrote the first screenplay for this proposed six-movie series. The writer will also serve as a producer alongside Guy Ritchie, Lionel Wigram, Akiva Goldsman and Tory Tunnell.
Guy Ritchie is currently shooting The Man from U.N.C.L.E. for Warner Bros., which stars Henry Cavill, Armie Hammer and Alicia Vikander.