antananarivo, tana for short, madagascar's crowded, chaotic capital city. >> how are you doing, man? rain. ♪ i don't know. i'm not sure if i can be in front of the camera. >> just ignore them. >> i'm so used to controlling everything. >> darren aronofsky, director of the films "pi," "requiem for a dream," "the wrestler," "black swan," and sort of appropriate to our location, "noah." he asked me if he could go along on a trip with us. i said where do you want to go. >> madagascar, i knew almost nothing about it. i knew it was an animated film i've seen a lot of times in my car. >> i guess it's one of the more extreme, distant places that you hear about that you'll never go to unless something weirdly summons you. you're sort of that weird force. >> we're on an island in the indian ocean with this amazing ethnic mix, an incredible landscape. something like 80% of the animals here don't exist anywhere else. >> what does it mean when an ecosystem goes out of balance? what is the blowback? here, you can see the blowback. the people have been chopping down the forests, and so you don't hav