EXCLUSIVE: Busy British actress Annabelle Wallis has been cast in Guy Ritchie’s epic project Knights Of The Roundtable: King Arthur. I’ve learned that the Annabelle star will play Maid Maggie in the film that sees Charlie Hunnam as the man who pulled the sword from the stone. Warner Bros has dated it for July 22, 2016.

ExcaliburPhoto(1)Joby Harold wrote the screenplay for the tentpole, which is intended to kick off a six-film franchise culled from Arthurian lore. Astrid Berger Frisby, Jude Law, Eric Bana, Djimon Hounsou, Aiden Gillen and Mikael Persbrandt also star. Akiva Goldsman is producing through Weed Road with Harold and Tory Tunnell through Safehouse Pictures and Ritchie and partner Lionel Wigram.

Warners released a synopsis for the film this month, calling it a bold new story that introduces a streetwise young Arthur who runs the back alleys of Londonium with his gang, unaware of the life he was born for until he grasps hold of the sword Excalibur. Instantly challenged by the sword’s power, Arthur is forced to make some hard choices. Throwing in with the Resistance and a mysterious young woman named Guinevere, he must learn to master the sword, face down his demons and unite the people to defeat the tyrant Vortigern — who murdered his parents and stole his crown — and become king.

Wallis is next up in Louis Letterier’s Grimsby with Sacha Baron Cohen and Mark Strong. She also will be seen opposite Armie Hammer in Mine, written and directed by Fabio Resinaro and Fabio Guaglione. Last year, the fast-rising Wallis starred in Warners’ horror hit Annabelle, which ultimately earned $255M worldwide. The actress also appears in popular BBC drama Peaky Blinders. She’s repped in the U.S. by ICM and Untitled Entertainment and by United Agents in the UK.