ROCK THE BOAT - documentary trailer

I really liked this, enough to bother commenting, and its a fascinating subject, but as a teaser trailer, you're giving up too much of the story for free, and not leaving any questions to be answered by watching the full story. Shorten it a bit more, and get the basic issue out much earlier: This river is a "real" river, but is not protected like one, because of a somewhat arbitrary rule about "navigability". If some plucky people can prove it IS "navigable", can they get the Army Corps and city government to follow their own law, and save the river? You have to leave the questions hanging, or people will just stop at watching the trailer, and not bother seeing the whole production...
Everything about this trailer is very professional, but it spends the first minute or so in an exercise of "throat-clearing", that is, making some noise while thinking about what it REALLY wants to say. Start it off with the controversy and why the kayakers want to prove their point, this is a much more active introduction, then you can wax lyrical about the scenery and the ecosystem later.

I feel this trailer and project are poised on the edge of "category 4" greatness, with just a few minor tweaks. Just don't give the whole story away, leave a question hanging.

Way too long. It needs to address the points quickly and not repeat them. I feel bludgeoned rather than enticed. I want to see it because I know I'd like the documentary but the trailer is overkill, by a long shot.