A quarter of a century ago, an unusual, low-budget, British horror movie called "Xtro" was released to some minor success. It was one of the early films made (or in this case, partially funded) by New Line Cinema (the studio that produced or distributed such varied films as Pink Flamingos, the Texas Chainsaw Massacre, The Evil Dead, A Nightmare on Elm Street, Critters, Hairspray, the live-action Teenage Mutant Ninja Turtles movies, the Mask, the Austin Powers series, and the Lord of the Rings films). Attempts were made to ban Xtro during the Video Nasties era in the 1980s, dispite that Xtro had been rated and approved by the British Board of Film Classification.
Two sequels were made, "Xtro II: The Second Encounter" and "Xtro 3: Watch the Skies", neither of which have anything to the original, or each other, except that they all involve some sort of alien creatures and were all directed by Harry Bromley Davenport. Davenport has plans for a fourth Xtro movie in the near future.
To celebrate, here's an article from Fangoria about Xtro and other New Line productions, such as "Alone in the Dark" (not be confused with the video game of the same name and its film adaptations):