Abraham Lincoln: Vampire Hunter star Benjamin Walker has joined the cast of The Great Wall for Legendary East and director Edward Zwick.

The project is the first to be developed under Legendary Pictures' new Legendary East banner. The story revolves around the mystery of why The Great Wall of China was built. We reported back in February that Henry Cavill will also star, although no details were given on either of the actors' characters.

Edward Zwick is directing from a screenplay he co-wrote with Marshall Herskovitz, based on an original idea by Legendary Pictures executive Thomas Tull and World War Z author Max Brooks.

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Jon Jashni, Alex Gartner, and Charles Roven will produce alongside Edward Zwick, Marshall Herskovitz, and Thomas Tull. No production schedule was released.