I’ve just seen the movie
and it’s kind of interesting
the Simpsons tend to mock the society
and, as any cartoon they present unreal events
but I guess the kids don’t mind that 
here, I was surprised just how much the character of the little Lisa Simpson is like me
she goes around telling people about the problems with the local lake pollution and they completelly ignore her
they just don’t care and they do not want to be reminded that they may be doing something wrong
she also does a similar scene as Al Gore did in the movie “An Inconvenient Truth” that I blogged a couple of days ago
poor Lisa… but at least she found a big friend there (see the movie, I’m not telling)
check out the movie info at wiki