As the peerless "Aliens" turns 40, here are 26 reasons it's still the greatest sci-fi action movie of all time.

The director’s more-is-more approach to the 1986 sequel gave us seat-edge action and an indelible performance from a rule-breaking Sigourney Weaver ...

The horror in space transforms into a riveting action epic.

40 years later, James Cameron's follow-up remains the clearest blueprint for expanding a franchise without repeating it.

What’s the best movie sequel ever made? Ask that question in a room full of movie fans and you’ll get plenty of passionate ...

It took Alien 7 years to receive a sequel, but James Cameron only needed only one letter to revolutionize the entire ...

David looks smug while wearing his spacesuit in Prometheus - 20th Century Fox Welcome toThe Best Movies Never Made, a look back at the most fascinating, strange, and tantalizing films that never ...

Archie Renaux stands on a space ship and looks at something off screen in Alien: Romulus Image via Walt Disney Studios Motion Pictures The umbrella of sci-fi is massive, and virtually every film and ...

Sequels like The Godfather Part II, The Empire Strikes Back, and Bride of Frankenstein are all among the most important in ...