My final theory

It's almost 10:00am here in Europe, and I just wanted to give you my final 5 cents before the french guys wake up and start coming in with real reviews. First of all, I promptly believe the wikipedia synopsis is a fake. 1. The call sheet, which IMHO is the only legit piece of info we have apart from the trailers, clearly states that "Shaw and Holloway see the Engineer collapsing". So Holloway lives long enough to actually witness an Engineer. I guess he either survives Charlize Theron's flamethrower or she burns someone else and it was all just clever trailer editing to throw us off the track. 2. As someone has already mentioned, the Engineer's skin seems nice and smooth when he's fighting Cuddles, while it appears burned and crinkled when he's throwing Shaw against the wall. So the Engineer in question must have survived the fight with Shaw's (presumably) baby. 3. There's a track called "A Friend from the Past" on the soundtrack, and no, the "friend" is not Peter Weyland, he has his own musical theme which is much more menacing :) 4. Some of the trailer shots show Shaw fighting an Engineer in Vicker's quarters, which are simply too posh to be a part of the lifeboat, and too intact to be a part of a crashed ship. SO HERE'S MY FINAL THEORY (sorry if it has been posted before ;) ) The "installation" the Prometheus crew stumbles upon is not a military base, it's a school or a sandbox for the Engineer children to play in. The black goo and assflower thingies are not bio-weapons but bio-toys. The children of giants got absorbed in playing and accidentally opened a Pandora's box.