James Cameron breaks his silence about the OceanGate Expeditions tourist submersible, Titan, that went missing during a dive down to the Titanic's wreckage site over the weekend. On ABC News, the 'Titanic' director, who has explored the ship's wreckage site himself many times, called the implosion of a submersible 'quite surreal.' James also opens up about knowing Titanic explorer Paul-Henri 'PH' Nargeolet for 25 years and mourned the death of his friend, who was on the Titan. Source