Terrible. Plot makes no sense. Shaw decides to reassemble David, despite the fact that he murdered her boyfriend. Yeah, that makes sense. Even better, the writers would have us believe that the Engineers, an advanced space faring race, only live in one city and that city is mainly stone huts. Stupid. And then they idly stand by while a long lost ship returns to their planet with a load of biological weapons. Sure. The main theme of this movie seems to be that there is no longer any "science" in science fiction.