To film the purse seine fishing sequence, the South Pacific team decided they would need to put a cameraman inside the fishing net.Few divers have ever attempted this before and it proved to be a real challenge.To be in the right spot at the right time, the film crew have to take up residence on a purse seine vessel.This 60-metre Papua New Guinea vessel can hold 800 tonnes of fish.For the 30-strong, all-male crew this boat is home.They spend 330 days of the year at sea, and can go two years without seeing their families.Their lives are a never-ending quest for fish.They're in port for three days, which gives the film crew a chance to jump on board.Here we are.It's a vast ocean, and even the fishermen don't know where the fish are, so they set a course for the location of their last big catch.The film crew have arranged for a dive boat to meet them there.Without the support of a professional dive boat, it would be dangerous to get in the water and film.
