User blog comment:ShawnCognitionCP/Alien: The Horror God, and if You've Been Influenced/@comment-28938497-20150227055530

Hell, pretty much every 80's and 90's Sci Fi film owes directly to Alien (and it's sequel)

Also, an argument could actually be made that until Alien, Horror (Frankenstien, Dracula, Call of Cthulu) and Suspence (Jaws, Rebecca, Maybe even Psycho) were seperate genres, and now they've kind of merged.