Before you get wrapped up in the new “Alien” television series (yup, it’s coming in 2025), you might want to peek at “Alien: Romulus,” a fascinating look at events around the time of the original film.

Rumors of Alien: Romulus not getting a follow up have been greatly exaggerated. Over the weekend, outlet World of Reel alleged that the unannounced sequel had been “indefinitely shelved,” bordering on “may not ever happen.” The website cited ...