The 'Titanic' has been sunk again ... because Tom Cruise's 'Top Gun: Maverick' just overtook the legendary blockbuster in the list of biggest money-makers in Hollywood history.

The high-flying sequel, which has been on a roll since its release in May, has now claimed the #7 spot in highest box office sales domestically ... clocking in at $662 million in tickets sold, beating out James Cameron's 1997 classic by a good $3 mil or so at $659M.