THQ just released a launch trailer for Warhammer 40,000: Space Marine, showcasing the cinematic and bloody nature of the title. You can see it past the cut.

You'll also be able to read my review of the game on this very site soon enough. But for now, if I may be excused, I  have some (hundreds of) Orks to kill. 

http://www.youtube.com/embed/PzW30RiYaZk