Just watched the movie today with a group of friends. Very disappointed. Have never really been into horror movies and although some people don't consider the Alien franchise a non-horror, the characters in Prometheus just did really stupid shit.
It also just barely brushed on concepts like religion and what it means to be a human but ive seen these ideas gone much more in depth in better, more thoughtful, films. As a summer blockbuster-esque movie, it was pretty decent. Good effects and great acting by Micheal Fassbender makes me a bit more happy i saw it on the big screen.