Ridley Scott’s return to Alien obsesses over dichotomies. Creation and destruction. The divine and the profane. Fascination and revulsion, especially. Prometheus offers a scenario where a bunch of scientists are bankrolled by a wizened, terminally-ill billionaire to blast off into the stars for answers to humanity’s most existential questions, only to find a tomb of horrors. The Engineers–the eight foot tall, paste-white men sought out by the explorers–are found to be endless, tinkering monsters; their entire culture built out of mechanizing and weaponizing organic matter. Their crowning achievement: a black goo which breaks down and reconstructs tissue for maximum predation. A grand, temple-like room with a sculpted head (presumably, their leader) is devoted to housing the stuff. The human children who have come seeking them, however, are superfluous, placeholders for raw genetic material to be harvested and disposed.

Though the script stubbornly insists on Noomi Rapace’s Shaw as the lead, she is stock and uninteresting compared to duplicitous robotic servant David (Michael Fassbender). Shaw never rises above assigned traits: her Christianity, rather than complementing the quest, exists only in her cross necklace and the throwaway line “It’s what I choose to believe” (referencing the Engineers); a revelation about her infertility is handled with clumsy melodrama. At least the latter pays off in a sequence where Shaw discovers she was impregnated with an alien squid and has to abort the fetus, but it’s a moment squeezed between a separate mutant attack and a nonsensical plot twist.

David, meanwhile, exhibits the polarizing duality Prometheus aims for. His attempts to be more like (and closer to, as shown in his obsession with Shaw) his human creators are countered with the passive-aggressive contempt he displays for how they belittle him (most pointedly when Shaw’s husband Holloway says he’s “not a real boy”). These fixations drive David and, in turn, the plot while the humans dither: the robot introduces the black goo into the crew and, later, seeks out a lifeform reading everyone else casually dismisses. There, he finds a massive navigation room, activating a holographic star map in a sequence as big and bold as anything in Close Encounters of the Third Kind or 2001: A Space Odyssey. Scott seems to cherish these little asides, hinting at a generational conflict having exploded into cosmic scale. The overall shape of the film crumbles, moving too fast with too many moving parts, but there’s an admirable earnestness in trying to drag audiences back to the moment in Alien when the camera zoomed on the fossilized skull of a long-dead alien giant.