Rise, glad I searched this out. You echo many of my own sentiments.
I know this movie is about Peter and his concert, but Ana Brun only sang two songs, I think that would have been a nice start. Also, felt it lacking as most of his song introductions and such were lacking or severely shortened, except for perhaps a few. The change in the song list was weird as well, especially those missing entirely. Common Peter, we can handle a two and a half to three hour movie. Especially as most will only see it in DVD version anyway. Or are they gonna suck us into buying the first set, then come out with an extended version?
Rise, I also noticed the orchestra people being much larger then Peter in some scenes and wondered if perhaps he shot some green screen after the concert or if it's just a weird effect from the 3D technology used?
Now some likes. Loved the songs he did share. Liked the guest singer that sang in Gabrielese.

Wanted to clap, and did, at the end of most of the songs. Might have got up and danced with a few, but didn't want to embarrass the Lunatic I was sitting next to.

Over all enjoyed the experience, but am happy that I went to the two concerts I did, because seeing his early concert to his middle concert to his last concert of the series, let's just say, he only got better, more in his element, as he went.