The Duncan Jones-directed, possibly Colin Farrell-starring Warcraft movie will be out on December 18 of 2015, according to a tweet from Blizzard.
The Legendary Pictures film has been in development for a good long while now, though with Moon and Source/Code director Duncan Jones attached, it seems to have finally found traction, and now, a release date. Legendary had previously been partnered with Warner Bros. to release the film, but according to Blizzard's tweet, they're now working with Universal. Our friends at io9 saw a teaser for the movie and were awfully excited about it; I'd wager that that teaser will make its way onto the internet before too long.
I'm still a bit skeptical about how one makes Warcraft into a movie, but if anyone can do something interesting with it, it's Duncan Jones.