Apparently no movie star has held his breath for that long during a shoot (at least nobody has documented it before).
But two years ago, news broke that Kate Winslet smashed Cruise's record while filming Avatar: The Way Of Water.
She is said to have stayed underwater and held her breath for a whopping 7 minutes and 14 seconds without an oxygen tank or similar technical aids.
She was helped by a technique that all the stars for "Avatar 2" had to learn: freediving, also known as Fr...