It’s things like this that make me wonder why nobody has tried to get the College Humor guys to make actual big-screen movies. Just look at how this mock-trailer for a Cowboys and Aliens movie starring not only the cast of Cowboys and Aliens, but also the H.R. Giger aliens, Clint Eastwood and the Predator! Even though the Alien vs. Predator movies sucked, this looks it would be one hell of an amazing property mashup.