Not sure that you'll get a comment from anyone of my generation (the Depression-ridden 30's) about the Emerald Forest. But here goes, anyway...
I first became aware of the term "ecology" when I signed up for a masters-level college class of the same name in 1965. It was the first formalization of the study of ecology on the West Coast. I took it simply because I needed a natural science credit and all the other classes were full. The class changed my life, and my perspectives. I devoured Rachel Carson, and savored movies like Dances With Wolves and Medicine Man. I even joined Green Peace at the age of 32 and suspect that I am probably the only Republican in history that can make that claim.
I would vote that Emerald Forest is the best of all popular eco-message dramas. It is my all time favorite. It is so well done in every area...script, acting, photography, and re-enactment of tribal customs. At the same time, it delivers a powerful message that can only be dismissed by the most callous of personalities. Every time I see the movie I am filled with regret that I could never accomplish such a landmark cinematographic ecological statement.
I was also filled with the emotion to go to Brazil and blow away anyone with a chainsaw...