Alien is a science-fiction action horror franchise centered on a movie series. It portrays Warrant Officer Ellen Ripley (played by American actress Sigourney Weaver) and her encounters with an extraterrestrial life form. The life form is generally referred to as “the Alien” or “Xenomorph”. The series was produced by 20th Century Fox and began in 1979 with the first movie and followed by four others. This series has also led to many comics, books, video games and collectable merchandise for the countless fans it has brought in over the years.