James Cameron, Net worth: $700 Million – Deepsea Challenger, Estimated $3 Million

James Cameron is the talented filmmaker behind movies like Titanic and The Terminator. When Cameron isn’t working on a movie, he is actually busy being a deep-sea explorer. His interest in deep-sea exploration started way back in the 1980s when he was working on the movie, The Abyss. Cameron owns a number of submarines and one of them is his submarine called the Deepsea Challenger. Such a submarine is estimated to be worth around $3 million. It is equipped with technology that makes deep-sea explorations way easier. Cameron is currently directing three upcoming films: Terminator 6 and two Avatar sequels.