This movie is definitely a deadly assalt on couple-normative society (in the occident?). Heterosexial couple is killed brutally, homosexial couple is also killed brutally, interracial couple is of course killed brutally, whoever has a partner is killed and new creatures thrive on their bodies. Originally slasher movie has an element like that but this sublimely grotesque myth for 21st century is at its peak, Hooray!
In which the DNA of several movies—a literal sequel to Prometheus, a spiritual sequel to Blade Runner, a Planet of Dr. Moreau, a run-and-gun splatter-fest—mix into a half-formed mutant that bursts from Ridley Scott's chest. It trips on its own mythology, which is a pity, because ALIEN needs no explanation: it was always most potent a long cold stare into the unknown. But I'll watch hard sci-fi with nice sets any day.
The problem with an franchise universe like Alien's is that it demands more and more quiet exploration to flesh out details, and less and less well-worn schlocky horror action. Perhaps what the Alien universe needs is fewer direct sequel/prequels, but instead its own version of the Animatrix; subtle explorations of the questions the films have raised, without the flashy but superficial action sequences.
Prometheus (for me) is a lot more interesting than any film of the Alien franchise. And this, at least, picks up (a little) from Prometheus. That's why it earned the 3rd start. It's not just one more thriller with same formula, aliens get inside crew members, get outside, survivors in mayhem try to escape aliens. Still, it would be great, if this gave us a more in depth back story for the "engineers", for instance.
3.5. Super entertaining, hauntingly beautiful and masterfully scored. The predictability of the plot is an issue but worse than that is the fact that some of the questions Prometheus posed were left unanswered and the others that were addressed were lazy excuses at that. The half-assed resolutions together with the lack of character development hurt what could have been a perfect resurrection to the franchise.