Prometheus Questioned: Spoilers and Explainations

This video is pretty funny (stop right now if you have not seen Prometheus yet):

I thought the movie (while flawed) was interesting.  When it was discovered the Engineers were the same DNA as us, I figured that it will turn out they are in fact us.  As in us in the future.  Because the explanation that the Engineers decide to seed primeval Earth and then wait a billion years or so for us to evolve seems a bit far fetched (and that we miraculously match their DNA after all that evolution).  Wouldn't they have evolved in the interim?   Even for some super advanced culture--a couple of billion years (which is how long life has been on Earth) is an immense span of time.

But after finding out that the original script involved an alien "space Jesus" and the Engineers wanted to kill us for killing space Jesus (how Mel Gibson of them)...well Ridley Scott was smart to leave that part out of the final film.

I also thought Lost was good the first couple of seasons.  I got suckered again.  Ace of Spades has a thread on it.