After years of delays, Legendary Entertainment is finally moving forward with their highly-anticipated World of Warcraft adaptation, bringing Duncan Jones (Moon, Source Code) on board to direct.

Back in August, after two years of little to no movement on the project, Legendary hired Charles Leavitt (The Seventh Son) to write the screenplay. Legendary is keeping the story line under wraps, but they are obviously confident in the material, since the studio hopes to start production this fall for a 2015 release.

RELATED: Warcraft 2 Rumored to Be Happening at Legendary

Sam Raimi was attached to direct for years, before ultimately bowing out to make Oz: The Great and Powerful. Thomas Tull and Jon Jashni are producing for Legendary, alongside Atlas Entertainment's Charles Roven and Alex Gartner.

The project is expected to be budgeted at over $100 million, which is a massive jump for director Duncan Jones. His feature debut Moon cost only $1 million to make, while his follow-up, 2011's Source Code, cost $35 million.

World of Warcraft is based on Blizzard Entertainment's multiplayer online role-playing game, that blends fantasy, science-fiction, and horror elements as players fight in the epic struggle between the Horde and the Alliance.