Kate Winslet has smashed Tom Cruise's on-set record for holding his breath underwater while filming Avatar: The Way Of Water.
The actress, 47, who plays Ronal in the highly anticipated sequel stayed underwater for seven minutes and 15 seconds.
Tom famously held his breath for six minutes on the set of Mission: Impossible - Rogue Nation.
The average time a person can hold their breath for is around one or two minutes.
Kate was so chuffed with her aquatics skills that she got her husband to video the scene after she sneaked him on set during production.
Speaking at a global press conference ahead of the film’s launch she said: “I actually have a video of when I surface from that breath-hold.
“And the only reason I have it is because my husband snuck in.
“I said, ‘Please don’t come because I just don’t want you videoing. I’ll just feel pressure, just please don’t do that’ and he snuck in.”
She continued: “I have the video of me surfacing saying, ‘Am I dead? Have I died?’ And then going ‘what was it?’ – straightaway I wanted to know my time.
“I couldn’t believe that it was 7.15 but having been told it’s 7.15 – you want to know what the next thing I say is? We need to radio set.
“I wanted James to know right way, that’s the first thing I wanted to do – it definitely wasn’t a competition.”
The Avatar sequel has reunited Kate and director James Cameron on set for the first time since the 1997 blockbuster Titanic.
James admitted: “I’m still p***** off because I’ve been a free diver for 50 years and you smoked past me and everybody else.
Kate also joked that when coming back to work with James she had expected “the absolute best of everything” because of the director’s “precision” and “meticulous” thought.
The original sci-fi epic from 2009 became the highest-grossing film of all time and went on to win three Oscars for its stunning visual effects, cinematography and art direction.
It was set in 2154 and followed paraplegic marine Jake Sully, sent to the moon Pandora on a unique mission which becomes challenged when he falls for Zoe Saldana’s other-worldly blue princess Neytiri.
The sequel is set more than a decade after the events of the first film and sees Jake settle down with Neytiri and their three children in the Na’vis’ rainforest home.
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Once a familiar threat returns, Jake, played by Sam Worthington, must work with Neytiri, Zoe Saldana, and the army of the Na’vi race to protect their planet.
On Tuesday, Kate and her co-stars including Sigourney Weaver and James attended the world premiere in central London for the highly anticipated sequel.
Avatar: The Way Of Water is due for release in cinemas on December 16.
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