Alien vs. Predator (also known as Aliens vs. Predator, abbreviated AvP) is a science fiction horror series spanning several media. The series is a crossover between two film franchises about alien species: the Aliens and the Predators. The franchise, which depicts the two species as being in conflict with one another, includes comics, novels, computer/video games, and feature films, the rights to which all belong to 20th Century Fox Studios. There have been two Alien vs. Predator films. Both critically panned.