Were the underwater shots of the present day Titanic wreck real?
Yes, most of the underwater closeups were photographed at 12,500 feet below the Atlantic just for this film. In 1995 James Cameron hired the Russian vessel Mstislav Keldysh and its 2 submersibles and made 12 dives. Cameron’s team built special cameras and housings to work under 6000 pounds per square inch of water pressure. Each camera could only hold 500 feet of film so only 12 minutes of raw footage were shot on each 15 hour dive!
