The Millennium Stadium thing was for the Tsunami concert. It was a thing that I think every band in the country would have liked to be a part of at the time that it happened.
It is also difficult to articulate the subtleties in cinema, because there aren't words or metaphors which describe many of the emotions you are attempting to evoke.
A mathematical proof is beautiful, but when you're finished, it's really only about one thing. A story can be about many things.