It was interesting to watch, because at around 10 years ago I was surprised to note that the issue at hand (well, at least as the girl's 'cause') was global warming, and a few quite strident predictions and warnings were already being made. They all got rather swallowed up in the relationship stuff, but they were there. And I think the boy was a Democrat.
Of course he ends up 'doing the right thing'. And that's where as a year-end wish you do find yourself rooting for the message. In fact the movie did try, at least initially, to address the fact that at high political levels there are all sorts of competing interests, that to buy off Peter you need to pay Paul, and that the electorate tends to vote with pretty much anything other than its brain.
So I went to bed smiling, but then awoke to open the online news to find that the UK's Green Belt is being concreted over faster and faster, for all sorts of reasons that made no sense to me.
I guess that's what movies are for; they give you a brief respite from reality.