Leonardo DiCaprio nearly died while having a diving adventure with pal and fellow actor, Ed Norton. Thankfully, the latter saved him.

This is revealed in a recent interview with film director, Fisher Stevens as he talks about a new documentary Before The Flood with the award-winning actor.

"I was filming [oceanographer] Sylvia [Earle] and I had this little easy camera to shoot underwater, and he was Sylvia's diving buddy, so I said, 'Would you film Sylvia?' And he said, 'Yeah, I love it, man, I love it," Steven said as he began telling his account.

The dive is said to have been amazing with 300 Eagle Rays and Spotted Rays but took a different turn when they noticed that the actor's oxygen tank leaked.

"...Leo bolts away with Sylvia, and Edward goes in front of me, and the next thing I know after 20 minutes, I'd lost them all. Then, I see Leo barely breathing, because Leo's tank was leaking oxygen, and Edward had to save him!"

The experience may be terrifying for Leo but it turned out to be an opportunity for the actor, Stevens and Norton to 'bond' together.

"It was pretty crazy. But he actually did get some film for me and it was good for a second, and then it got pretty shaky when he couldn't breathe. But we really bonded on that trip," the director said.

The Galapagos incident is just one of the many near-death experiences that the actor succumbed to.

His latest experience was in 2015 while filming the Oscar-award winning film, The Revenant when DiCaprio nearly suffered hypothermia while filming in the snowy landscape.

"[I was] enduring freezing cold and possible hypothermia constantly. I certainly don't eat raw bison liver on a regular basis," he once said in an interview.

Meanwhile, Leonardo DiCaprio has an upcoming movie project as he has signed to become a producer-actor of a biopic about Sun Records founder Sam Phillips. Philipps is a significant figure in the production of the 50s rock n roll as he worked with icons Elvis Presley, Johnny Cash, Carl Perkins in the music industry.

The biopic is said to have been basied on Peter Guralnick's book Sam Phillips: The Man Who Invented Rock 'N' Roll. Also co-producing the Paramount Pictures film is Mick Jagger who was also behind the production of the drama, Vinyl on HBO.