EA's put out the first episode in the Dead Space cartoon. It's seven minutes long, and you can get is from Gamershell. From the site:
The script for the Dead Space animated feature picks up the plot where the original comic book series ends and leads up to the beginning of the Dead Space game. The story focuses on the events aboard a futuristic mining spaceship, the USG Ishimura, after it pulls a mysterious artifact from a remote dig site.
More through the link.
Update: We just watched this. It's cool! Lots of swearing and violence. More, please.