I watched a really good documentary this weekend called Marathon Boy. It's about a three year old boy, Budhia, from the slums of India who is adopted and trains to be a marathon runner with hopes of going to the Olympics. Budhia trains relentlessly, and says things like "What are you doing here motherfucker? Get out of my way motherfucker!" when he comes across people in his running path. It develops into quite a story, and I think it's a definite must see.