The "Alien" film franchise is one of the most critically acclaimed science fiction series of all time. First released in 1979, so far the franchise incorporates eight feature films, a pending television series, and a web series to develop the plot. In its essence, the series follows the perceived dangers of other lifeforms in space and their complicated and dangerous relationships over the centuries. While some films focus on humans seeking out alien planets, others in the franchise portray what it would be like to be invaded by extra terrestrials hundreds of years ago. All in all, the series is a must for any science fiction and horror fans!