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In 2004, four teenagers from an impoverished school in Arizona won a college-level underwater robotics competition sponsored by Nasa. A new documentary, Underwater Dreams, tells the story of team's improbable win with their makeshift underwater robot Stinky. The film’s director is Mary Mazzio. (Photo: Clockwise from top left, Cristian, Luis, Oscar and Lorenzo, who as students won a robotics competition. Credit: 50 Eggs Inc)