1) The 3D was stunning. It wasn't too dark or too light, and it didn't feel like they were purposely going out of their way to make trick shots for a 3D audience. This is definitely a "big screen" film, and I feel that if you are a fan of these movies, you definitely want to invest the money to see it in IMAX if you can.
2) Michael Fassbender as David was the most interesting android ever. There are parts where he is on the spaceship, engaging in sports by himself to clearly wile away the time and then he also emulates Peter O'Toole's character in Lawrence of Arabia (by the way Fassbender looks a lot like a young Peter O'Toole, and I had previously not noticed this connection). Anyway, why would an android need to use old movies and sports to entertain himself unless he was bored? And this begs another question...can computers be bored? I have no idea. But it's an intriguing concept. Roger Ebert pointed out in his review that Peter Weyland referred to David as the "son I never had". Charlize Theron plays the daughter of Peter Weyland and there was definitely sibling rivalry there as well as a startling physical appearance (both blond, both tall, etc.). But Peter Weyland strips David of humanity by declaring him soulless. Is this statement true though? I don't know.
3) The concept of parents. David the android says in one scene that "all children secretly want their parents to die". I thought this was fascinating that someone would even say this. I for one don't want my parents to die. I kind of feel that having my parents die will be the thing that makes me really aware of my mortality--that I too can and will die. And I kind of wonder if David said this because he's essentially immortal and wants to know what it will feel like to die and doesn't believe he can do so UNLESS the ones who created him perish.
Additionally, in Prometheus, one of the characters named Shaw is obsessed with finding an explanation of "where do humans come from?" She's Christian in the movie, which suggests to me that she already has an answer. So why then is she doing all of this searching? Does she want proof? Is belief not enough for her? Maybe there is something to the statement "All fanatics hide a secret doubt". What do you think?
Basically, I see Shaw's quest as a search for parentage of some kind and when she finds it, the parents are not what she was expecting. In fact, they're pretty terrifying. Physically, the "space jockeys" look like the most muscular humans on earth, only half again as tall. Take the offspring of NFL superstars like Eli Manning and Tom Brady and couple that genetic code with really tall supermodels for about three hundred years and then smack that offspring with an ugly stick, and you'd probably end up with a space jockey. So really...not all that far-fetched.
And the gist of Prometheus is that this "super race" created humans (basically destroying all of her beliefs in one fell blow) and to top it off, they're jerks. They offer no explanation for what they did, and it looks like they changed their mind about humanity. In other words, the stuff on the world that the Prometheus visits is a biological weapon. The alien xenomorph is a creation manufactured in a lab somewhere and meant to deploy against the human race to wipe us out. But why?
4) The unanswered questions. The end of the show has Shaw zooming off in a space jockey ship with David along for the ride and she isn't going back to Earth. She's going for the Engineer's (space jockey) homeworld. But what does she hope to find there? They clearly wanted humans dead. However, it's been 2000 years since the engineers on this world were in touch with their core civilization. Did something happen to them? Did they get wiped out by their own biological weapons? Or maybe they were designing a weapon to take out their own parents (the ones that created them).
All in all, Prometheus is the magnificent film that I was hoping for, so I'm pleased. I just hope it makes enough money to warrant a sequel. I want answers that the film didn't provide. And I would also like to see how the first Alien movie and the events in Prometheus connect. Where did the derelict spacecraft on LV-426 come from as well as the huge cargo of eggs. The end of Prometheus showed the birth of a xenomorph, but that's basically a harmless lifeform as the planet had no indigenous population really (unless the alien could learn to pilot an empty ship).