See here for more information.
This bit is from the movie producers' website, Codex Movies:
Ultramarines is a 70-minute sci-fi thriller that will use CGI and state-of-the-art animation production techniques. Games Workshop is delighted to be working with UK-based production company Codex Pictures, who have the momentous task of bringing the Warhammer 40,000 universe to the screen.
Commenting on the news, Erik Mogensen, Licensing and Acquired Rights Manager for Games Workshop, said, “Over the years, we have been approached again and again by all sorts of producers and film companies wanting to take our intellectual property to the screen. We have always believed that, in the right hands, the stories, themes and characters from the Warhammer 40,000 universe would lend themselves perfectly to the movie genre. We’re working closely with the talented team at Codex Pictures, who have an excellent understanding of the Warhammer 40,000 intellectual property and an inspired vision for the movie. We can’t wait to see our universe come to life on-screen.”
“We’re hugely honoured to be making Ultramarines,” said a spokesman for Codex Pictures. “It’s taken a lot of research and development to get to this stage – and it’s such an exciting challenge to be able to bring the depth and power of the Warhammer 40,000 universe to a brand new medium.”
News of the production of a movie was unveiled at UK Games Day, the biggest event in the Games Workshop calendar, on Sunday, September 27 2009."
I have to say this is pretty exciting. Even though it is about the Ultramarines (for those not familiar, the Ultramarines are a Space Marine Chapter, which in my opinion is grossly overused, even if they're supposed to be representative).