Alien Aliens Prometheus

The Alien film franchise (also known as Aliens) is a science fiction horror film series consisting of four installments, focusing on Warrant Officer Ellen Ripley (played by Sigourney Weaver) and her battles with an extraterrestrial lifeform, commonly referred to as "the Alien." Produced by 20th Century Fox, the series started with the 1979 film Alien, which led to film sequels, as well as numerous books, comics, and video game spin-offs.