Repelling out of the alien ship?

I remember reading that one of the crew from prometheus steals a source code for terreforming from the space jockey engineers which causes them to release the alien bioweapon on the prometheus crew? then the crew somehow turns the weapon against the jockey's, creating a much smarter and, um perverted alien. I think I remember reading that RS at least said that a smarter, perverted alien is created by coming from space jockey's.... I am not positive on this...

I agree with sean. There is proof of the movie being a prequel all over the trailer. did any of you see the xenomorph on the ceiling? it was either a live one or a mural but it is in the movie none the less. if you pay close attention to the trailers you can catch a glimps of it. as far as the actual alien of the film, it's a creepy snake thing that resembles those nasty aliens in the Dreamcatcher movie...