In space, no one can hear you spoil the latest "Alien" movie. Be warned, this article discusses major spoilers from "Alien: Romulus."

After well over 40 years of seeing the "perfect organism" in all its various forms on the big screen, including a convoluted origin story covered in both of Ridley Scott's divisive prequels "Prometheus" and "Alien: Covenant," it was fair to wonder how another franchise installment like "Alien: Romulus" (read /Film's review) could possibly make the dreaded Xenomorph scary again. Every possible facet of the sentient mechanical-biological weapon seemed to have been explored by now, from its flawless introduction in the 1979 original to the introduction of the queen in "Aliens" to the animal hybrid of "Alien 3." So, what was left for director Fede Álvarez to explore this time around?

Luckily for us all, "Romulus" goes back to the franchise's roots (according to many of the early reactions to...