They’re in town with a few days to kill.

Anderson Set for Aliens Vs. Predator
20th Century Fox has tapped Paul Anderson (RESIDENT EVIL) to direct the long rumored ALIENS VS. PREDATOR, based on the Fox Interactive PC game.
The story follows a group of scientists who try and experiment on the Alien brood and Predators. They decide to hatch Alien eggs to create an environment attractive to the Predators.