There's a behind the scenes featurette at the apple trailers page with a few intersting insights into Alien vs. Predator, a little of the plot, and a pretty groovy-lookin' new weapon for the predators too.
http://www.apple.com/trailers/fox/avp/featurette/
Brother R
That footage has been on there for months now but thanks anyway for letting others here know.
I'll definitely be going to see it!