Go. Watch this. Unless you want to be completely pure when you see Prometheus, check out this video, a faux-commercial for a product in the movie's universe which serves as a REAL commercial for the movie in our REAL universe AND serves as a short sci-fi film!
I find it very, very interesting. Tonally, I do not expect the movie to feel like this short video, which is why I find it even more interesting. It's barely three minutes (I think) but it gets into some interesting sci-fi concepts -- artificial intelligence and artificial emotion and "robots" taking over the workforce and . . . well, other stuff -- and it does it very well, allowing the actor, script, settings, and cinematography to work together.
To be honest, I didn't bother to watch the fake TED video they put out to promote the movie, and after I watched this I watched the TED thing. The TED thing did nothing for me. This does. I want to see the character in action.