Prometheus is a disaster of almost Phantom Menace proportions. Its script is a comedy of stupid that makes the Three Stooges look like Isaac Newton, Nikola Tesla, and Albert Einstein.
This movie lost me completely about 10 or 15 minutes in, when Noomi Rapace's and Logan Marshall-Green's crackpot archaeologist characters (Elizabeth Shaw and Charlie Halloway, respectively) are explaining their mission to the newly-awakened crew of the Prometheus. They tell the crew (consisting predominantly of scientists) that they had discovered stone tablets all around the world that depict giant men pointing to a particular constellation in the sky, and that they believe that these tablets constitute an invitation from humanity's extra-terrestrial creators that they should visit them in space. They dismiss the possibility of coincidence by saying that a.) the art lines up exactly, and b.) the particular star cluster was too far away for any of those primitive cultures to have been able to see with the naked eye, and so aliens must have told them. The hypothesis itself doesn't upset me on its own. But when asked by a mohawked, punk geologist what actual evidence they have to believe that aliens had intelligently engineered life on earth, Shaw responds that she has none, but it is what she "chooses to believe".
These two crackpot archeologists' wild-ass hunch, thus became the basis for a trillion-dollar space expedition in which scientists and engineers were drafted into without even being told where they were going or what they were doing.
Now, if this silly setup had ended up being my only complaint with the movie, I'd let it pass, and Prometheus probably could have turned into an excellent science fiction (or space fantasy) movie. Unfortunately, Damon Lindelof's script is unbearably bad, and is completely dependent on every character (despite being scientists, engineers, and a hyper-intelligent andriod) being dumb as a rock. [More]