What a disappointment! I expected more from Ridley Scott. Why is this movie such a disappointment? Well, you must know a little about the story. Prometheus is the story of a trillion-dollar mission to discover the origins of human life on a distant planet. Basically, this is supposed to be the greatest exploration undertaken in the history of mankind.
So who do they send? A group of goons who resemble the Three Stooges. Within minutes of touching down, the 'scientists' are yanking off their helmets, on the basis of 'it seems fine to me', dipping their fingers into strange organic ooze, and lugging a severed alien head back to an unquarantined spaceship in a sandwich bag.
Once there, they speedily discover the meaning of life. Then, while one of them gets a bit drunk, his two female companions decide it would be useful to stimulate the head electrically to reanimate it. They don't say why. They give it a bit too much juice, then too little, then dither over too much or too little like a couple of schoolgirls fiddling with a bunsen burner, while the most important scientific discovery in human history waggles its ears and rolls its eyes - before eventually blowing up like a frog in a microwave.
The entire movie is a litany of ludicrous so-called science, schoolboy errors, and pseudo-profundity about the origin of species. Ironic really, when none of the crew would have a chance in hell in any sort of contest governed by Darwinian rules.