‘Alien: Earth’ Review

The rich irony at the heart of the storied “Alien” franchise is that at the core of these encounters with the monstrous animal is a question of what, in fact, makes us truly human. The grand twist of the original 1979 masterpiece was the revelation that Ash, the crew’s science officer, was not in fact human, but an android, creating a blurred line that subsequent films have all toyed with in one way or another. In the second era of reboots, with “Prometheus” and “Alien: Covenant,” the franchise ushered in terrifyingly existential questions about man as it looks, in a sense, into the face of God.