Leonardo DiCaprio Almost Drowned Filming 'Before The Flood'!

Leonardo DiCaprio is dapper in a suit while hitting the red carpet at the premiere of his new film Before The Flood held at the United Nations Headquarters on Thursday (October 20) in New York City.

The 41-year-old actor-executive producer was joined at the event by Mark Ruffalo, Edward Norton and his wife Shauna Robertson, Lukas Haas, Mamie Gummer, John Leguizamo and his wife Justine Maurer, Josh Charles, Bridget Moynahan, U.S. Secretary of State John Kerry, and director of the documentary Fisher Stevens.

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“The second time we properly hung out together was in 2010 when I was invited to film Sylvia Earle for a TED conference expedition to the Galapagos. Leo was on the expedition,” Fisher revealed about when he began to work with Leo (via GQ). “I was filming Sylvia 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’. I was diving buddies with Edward Norton. So we go down and we see 300 Eagle Rays and Spotted Rays and it was an amazing dive. Leo bolts away with Sylvia, and Edward goes in front of me and the next thing I know after twenty minutes I’d lost them all. Then, I see Leo buddy breathing, because Leo’s tank was leaking oxygen, and Edward had to save him! 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.”

20+ pictures inside of Leonardo DiCaprio and others at the premiere of Before The Flood…