Anti-dolphin hunt activist Ric O' Barry, left, hands over a scroll of petition collected from across the world, to  Bruce Howard, Consulate, Science Environment and Technology at the U.S. Embassy, who then will hand the petition to the Japanese government in Tokyo,  Thursday, Sept. 2, 2010.(AP Photo/Junji Kurokawa)AP – The star of an Oscar-winning documentary about a Japanese town that slaughters dolphins delivered a petition to the U.S. Embassy in Tokyo on Thursday demanding an end to the hunt.