Raise the Titanic (1980)

Storyline :

Raise the Titanic (1980) A group of Americans are interested in raising the illfated Ocean liner Titanic. One of the team members finds out the Russians also have plans to raise the ship from its watery grave. Why all the interest ? A rare mineral on board could be used to power a sound beam that will knock any missile out of the air when entering us airspace.