Almost three-quarters of the earth's surface is covered by oceans, yet strangely we seem to know more about deep space than the world of the sea. There's no question that the ocean has played a crucial role in the history and sustenance of humankind, but what secrets does the underwater world hold? “Winged Migration” co-directors Jacques Cluzaud and Jacques Perrin re-team for OCEANS (2010, 103 min) to explore the many mysteries of the deep.