Pretty nice movie, I think it was a good presentation, although the off-screen hiphop party was kind of annoying. The second part is the most interesting one, because it focusses on the quest branching. Be sure to watch that one.
About the running/juming, Lar demonstrated +3hrs of gameplay in half an hour. It's probably an understatement when I say that he had to rush things

. Concerning the jumping, it's not something you are forced to do, you can just as well walk around the village and stroll through the gate. But again, those things take up demonstration time ... and I think Lar just likes to jump around a lot

@Xanlosch: nice job man

... one small remark though, there seems to be a problem with the sound in the third movie