Some exceptionally unsettling elements were thrown together to create the Xenomorph when it first appeared in Ridley Scott's 1979 horror sci-fi, "Alien." Spliced from the nightmares of artist H.R.

The sci-fi genre is one of the most consistently popular in modern cinema and has enjoyed a rich and storied history. The nature of sci-fi allows for hugely imaginative stories, making use of tropes ...