Sierra Entertainment today announced that Rebellion is developing Aliens/Predator, a PSP game based on the new Aliens/Predator film, which Twentieth Century Fox releases on December 25. In Aliens/Predator, players will become the ultimate Predator, hunting down and eliminating the Alien species in the authentic universe of the Aliens/Predator movie. Check full story for details - the first five screenshots found their way in our gallery.