Just watched AVP. I think that with a better plot and placed into dnd, it could either make an awesome movie and/or adventure. Switch the Predators into Kobolds and the Aliens to like Orcs or something, add the PCs into the mix in the middle of a giant labyrinthine dungeon and watch everything play out from there. Actually, despite the whole trap thing, I think the Orcs would make better Predators and the Kobolds better Aliens. Kobolds would be shadow-creature rogues and the Orcs rangers or something like that with an occasional variant class to make things interesting. With the PCs fighting to survive between both groups, in the midst of a lotta traps and maybe even an occasional wandering golem, could be very interesting.