It's a little hard to believe at first, but the video is realtime and the moon really does move that quickly across the sky. It's a little deceiving, though, since the video was shot through a telephoto lens from 2 km out, so you're seeing a smaller portion of the sky than you might at first assume. That's also why the people seem so small against it: the moon is distant and large enough that it's going to appear about the same size no matter where you are on the surface of the Earth, but 2 km is very relevant to objects the size of human beings, so they seem quite small against the moon. Phil Plait explains that and more over at Bad Astronomy.
The music is lovely (I'm a total sucker for a pairing of strings and piano) and of course the view is amazing. There's something enchanting about watching the people mill about on the hill in silhouette; knowing nothing about who they are, but still feeling a bit of a connection because they're so readily recognizable as human. There's a young couple sitting closely side-by-side, children clambering on top of things. And while the people went up to that observation area to enjoy nature just as we are, they have no idea about the stunning image they've become a part of. All in all, it just really makes me smile.