Hollywood film director James Cameron, who directed the 1997 movie Titanic, has told the BBC the team who built the submersible which imploded with the loss of five lives had "cut corners". OceanGate, the parent company of the Titan sub, "didn't get certified because they knew they wouldn't pass". "I was very suspect of the technology that they were using. I wouldn't have gotten in that sub," he said. Cameron has completed 33 submersible dives to the Titanic wreck. Titan was built from carbon fibre and titanium. In 2012 Cameron used a different technology for the Deepsea Challenger submersible expedition in the Pacific, which took him down to 10,912m (35,800ft), the deepest known oceanic trench. The Titanic wreck is 3,810m (12,500ft) down. https://3dwarehouse.sketchup.com/model/6bf15d7d-9168-4ee0-902b-12f2ca387d9a/Ocean-Investigations https://youtu.be/FAV8rRitmpY Seen on You Tube : https://youtu.be/FAV8rRitmpY