Dr. Muhammad Yunus is interviewed and describes his story and practical, functioning application of his idea for overcoming world poverty. It works!  He (and the bank he founded for this purpose in Bangladesh, Grameen Bank) won the Nobel Peace Prize in 2006.

http://nobelprize.org/nobel_prizes/peace/laureates/2006/ 

(There are minor sound dubbing issues with the audio portion of ths video, but the overall message in not obscured)