"Titanic" director James Cameron, who has explored the ship's wreckage site himself, called the implosion of a submersible that vanished on a Titanic tour Su...

Film director James Cameron has expertise in designing and testing these submersibles, and he has many criticisms of the design of the sub that imploded, and of the hubris of the CEO who ignored repeated safety warnings from the diving community. He also mentions that the sub seems to have been attempting to resurface when it imploded, suggesting that they were aware the hull was starting to fail.