It was one of the best movies I've seen in at least 10 years.
On political forums, some folks are tying to criticize some hypothetical hidden environment agenda, but I think thats a rediculous way to look at it.
The story line is not greatly developed, and I think that is another reason it is so good. Anybody can follow it. Its great entertainment.
The referral business this movie is getting may be unsurpassed. I emailed someone the night I saw it, afterward, and they - in another state - went the next day, thanking for the tip.