Raise the Titanic (Blu-ray)(1980)

Based on Clive Cussler's best-selling novel, Raise the Titanic is the story of the most famous passenger liner, and the treasures that may lie with it's remains! When it's discovered that the sunken Titanic has rare mineral on board that could be used to power a sound beam that will knock any missile out of the air when entering US airspace, it's a race to dig it up between the Americans and the Russians!