My own issues

I won't go into certain issues like cluttered script, etc as they have been covered here by other people, I will point out glaring issues I saw. The 3D was pointless a tol that was under used so why use it all? It felt flat as a pancake. The supporting cast acting wasn't the best but worst was that Ford woman, she sounded like a machine on line delivery. Why was half the crew scottish? (please don't say they found the last marking in Skye, they found marking in sumeria but there were no Asians from that part of the world aboard.) The bit with crazy Fifield coming back to kill off the crew was completely pointless and irrelevant. You could have cut that entire bit out and lost none of the plot or movie momentum it just felt like an excuse to have some deaths on screen. Far too many loose ends where there like, the murals, the urns purpose, why the engineers now want us dead, the Hammerpede, the squid baby/body hugger. I expect a lost of people will say these are set up for future films but I felt they were just threads of weird crap put it for someone else to resolve down the line which is bad writing (I will point out to you O'Bannon new what the pilot of the derelict was and didn't set it up without knowing.) Vickers and Fassbender's roles where underused, they were the interesting philosophical points of the movie as was Weyland and I could have watched a movie about those characters alone without the rest of the crew, they were interesting and I wanted to know more about them unlike, Shaw and Holloway. Too many crew members on the prometheus, when Fifield went nuts killing them he was murdering crewmen I didn't even know where onboard until they were getting an axe in the back! Canon Fodder, bad writing. Weyland appeared out of nowhere in this massive plot twist which was then resolved in no time at all. Him being there was monumental and perhaps the movie should more have been about David and him seeking the creators with a crew not Elizabeth Shaw and her bullsh!t quest to find God. Weyland had a far stronger and much more interesting motivation to seek out a potentially hostile intelligent life-form and the fact that he was dying eliminated all the 'why's' from the script. Weyland sent the ship on the basis of the cave paintings? Seems a bit far fetched I was expecting evidence or they could have said they sent a robotic probe first and found non human structures or something, that would have made much more sense to follow up with a manned mission. Shaw just decided to take another ship and fly to see them after the first one they met tried to murder them all horribly? I don't care if we saw a dream of her talking about God her motivation wasn't strong enough by a long shot, maybe if she was infected or something it would have made sense. The captain and his crewmen just shrug nonchalantly and agree to die crashing the prometheus into the Juggernaught as though it wasn't really a big deal, again with no character buildup and it wasn't a noble sacrifice because I barely saw these people in it. Again if they were infected it would have made more sense. The crew start removing their helmets in untested atmosphere? (Yes David said they could breathe it but what about virus's, etc.) Then they all decide to do it to which the captain keys in an affirmative that they are all putting their lives at risk, didn't Vickers have anything to say about this foolhardy activity? My main problems was this shouldn't have had any alien references in it, the space jockey, etc. It should have been the engineers were a separate race and had no links to them. All ties to Alien were tenuous and forced especially whilst trying to add the engineers creating us at the same time. Too many big ideas for one film. If this had been a standalone sci-fi I would have been much less insulted by it. Prequels don't work because you develop a myth people have lived with for how ever many years, it would be like making a movie on the Simarillion, those stories work better when the characters in Lord of the Rings refer to them, to show the myth itself depowers it because it can never live up to the hype. They did the same thing with the 'Thing' prequel. This film was in trouble before it got made because it was playing with an established myth that was grander in concept than it was in story and an idea is more powerful when it is a mystery.