Illogical & Arbitrary

Rating: 2/10 (9 June 2012)

I do not expect a sci-fi to follow real science, but it should at least get the basic stuff right. Prometheus is so illogical that throughout the movie I was moved to ask how a certain plot was possible, or why no one did the basic research to get that fact/theory right, or why the characters would do something so stupid/arbitrary, or how they managed to get me into watching this crap in a theater.
I wasn't even bothered by the team of scientists taking their helmets off on an alien planet. It's a Hollywood movie after all, and the actors need to show their faces. However, flying a bunch of stupid scientists who haven't even met each other (let alone trained together) on a trillion dollar space mission to a star cluster lightyears away only identified by smudged up cave man drawing; the sponsor of the mission (who is paying for the whole mission and can do whatever he likes) pretending to be dead and hiding on the ship; scientists at the greatest discovery of history turning away because he only wants to look at rocks; then later got lost and got killed because he tried to be friendly to a cobra like alien worm; randomly blowing up priceless alien head sample... etc etc. just do not make any sense whatsoever.
At one point the human robot arbitrarily fed alien substance to fellow crew member even though neither had any idea what it would do. It ended up killing that fellow crew member but not before impregnating his girlfriend with an alien fetus. The robot then for tried to preserve that alien fetus. The robot's actions is devoid of explanation. If there is a parallel between it and the humans (the robot's maker) and between the humans and the aliens (the human's maker), the movie fails to communicate it to the audience.
The pregnant girlfriend then attacked the medical staff when they tried to treat her and used a machine to cut herself open, take out the alien fetus, and literally STAPLED herself back up (technologically advanced staples with nanomachines that stitched up nerves and muscle tissues, no doubt). Throughout that operation I was expecting the attacked medical staff or the robot to come interfere, but apparently they were all preoccupied.
When the mission sponsor finally meets the alien, he has the robot translate what he has to say, and even before the alien opens his mouth, the robot is able to speak the alien language, even though he should have never heard it. The alien has no reason to be angry, no motive to kill these puny humans that are no immediate threats, and even if he chooses to kill them, he can easily regroup with the rest of his species and use their superior technology to kill all the humans, but he chooses to rip the robot apart with his bare hands and eventually get killed in the fight. This alien is the first one the explorers find in the first alien base 5 minutes from their landing site, and one would expect there to be many more on the planet if not in the neighboring site. Yet the explorers somehow conclude that he is the only one, and if they need to find answers after killing him they need to travel to the alien's home planet (it isn't even made clear how they deduce that the planet they are on is not the alien's home planet).
Prometheus tries to address the profound question of human origin, but end up only feeling pretentious and moronic. If you are going to talk about god and evolution, please realize that a lot of people today have reasonably good understanding of the subjects, so 1. you cannot say that the aliens have a perfect DNA match with human and then have them look so different; 2. you cannot say things like the 2000 year old aliens' DNA "predates" human's and thus we have come from them (the scientific argument is that we share the same vestigial junk DNA, which suggests that we share common ancestors, but neither one "predates" the other, since 2000 years are too short a time scale for significant evolution to take place); and 3. having one "engineer" spreading its DNA on earth would not produce the diversity of creatures. Again, I expect sci-fi to be a mix of science and fiction, but you need to get right the basic stuff coming out of the mouth of a top scientist on a subject that is central to the theme of the movie.
I can go on and on about the plot holes in this movie, but then it really isn't worth my time.