Personally, I would remake RAISE THE TITANIC.  In the book, some of the most exciting parts of the book are after they raise the ship.  There is a whole section where the Russians attempt to hijack (shipjack?) the ship in the middle of a hurricane.  In the movie, that whole part lasts about two minutes on screen.  It was like, they ran out of time and they ran out of money; so skip to the ship arriving in New York.  What a letdown.