Kate Winslet: The door scene in Titanic was filmed in a small tank

Kate Winslet has admitted that the iconic Titanic door scene was filmed in a waist-high tank.

In the scene from the 1997 blockbuster, Rose (Winslet) climbs a floating door after the famous ocean liner sinks beneath the icy waves, while her lover Jack (Leonardo DiCaprio) holds on to her. The 48-year-old actress described filming the scene as not as impressive as it looks on screen.

“It was a pretty awkward tank. This tank was waist high. So at first I was regularly like, "Ugh, can I go to the bathroom?" and then I'd get up, walk out the door, walk to the edge of the tank, which was about 20 feet away, and literally have to swing a leg, yeah get out of the tank and go to the bathroom and then come back and climb in the door again," she said during an appearance on host Josh Horowitz's "Happy Sad Confused" podcast.

The "Avatar 2" star joked that she shouldn't reveal these filmmaking secrets because director James Cameron would go after her for it.

“It's terrible to admit these things… Leo is, unfortunately, on his knees at the bottom of the tank. I don't have to share any of these things. James Cameron is going to call me, 'Why are you telling them all this?'" Winslet said.

The actress explained that the last 20 minutes of the film were shot entirely with automated dialogue replacement, as the constant pounding of water from the tank drowned out her and DiCaprio's lines.

"The thing that was amazing about the ends of the tank was that it was an endless tank, so there was a constant roar of water and you could hear the constant sound of the water," she pointed out.

The scene has long been the subject of debate as to whether Jack could have fit in the doorway with Rose instead of surrendering to his watery grave. Kate joked that her co-star "probably got PTSD from the whole thing." | BGNES