Kate Winslet says the Titanic door was “actually” another piece of the ship

Kate Winslet turns to frequently discussed Titanic the door scene—which, she says, might not even be a “door” scene.

While talking to an Australian talk show Project and promoting her role in the new Ellen Kuras biopic LeeThe 49-year-old Oscar winner said the “door” featured in the iconic Titanic The stage wasn’t actually a door, but rather another part of the scenery.

When asked if there was a “seat by the door” for Costar Leonardo DiCaprio – whose character Jack Dawson kept on a piece of floating wood after the sinking of the ship — Winslet, who played Rose DeWitt Bukatersaid she knew the interviewer was “going to ask me that question.”

Never miss a story – subscribe PEOPLE’s free daily newsletter to stay up to date with the best that PEOPLE has to offer, from celebrity news to compelling people-interest stories.

“I thought, ‘He’s destroying.’ Titanic question, and then he’ll ask me about the door.” “I knew it for sure,” Winslet said. “But, you know what I will say, what’s really interesting is that people keep calling it a door.” In fact, it wasn’t even a door.”

“It’s a piece of fencing like a ladder or something that broke off,” she continued. “Who knows if (DiCaprio) could (walk) up there or not. Honestly, I don’t have any information that someone hasn’t already tried to find out.”

This scene became the subject of discussion among Titanic fans and moviegoers since the film’s release in 1997, as well as some fans Reddit also concluding that the wreckage was not a door and matching it with an image from inside the film’s titular ship.

Never miss a story – subscribe PEOPLE’s free daily newsletter to stay up to date with the best that PEOPLE has to offer, from juicy celebrity news to compelling people-interest stories.

Titanic director James Cameron earlier too commissioned a scientific study to determine if there really was enough room for Jack and Rose on the floating wreckage when he and a team of scientists used two doubles to play out four different scenarios.

“Jack could have survived, but there are a lot of variables,” Cameron, 70, said last year. “I think his thinking was, ‘I’m not going to do anything to put her in danger.’ ”

During a 92nd Street Y Q&A for Lee back in September, Winslet shared some additional understanding on stage, joking that DiCaprio, 49, was probably “getting PTSD” when asked about Titanic moment so many times. Speaking to Josh Horowitz, Winslet also revealed that the water wasn’t as deep as it appeared on screen.

“First, I was regularly thinking, ‘Can I just go pee?’ And then I get up, pull away from the door, go to the edge of the tank, about 20 feet away, and I literally have to swing my leg over and go up and back to the door. It’s terrible.” – she remembered.

“Anyway, yes. So it was waist deep. Leo, I’m afraid to say, was on his knees. In any case, I shouldn’t say that Jimmy Cameron is going to call me,” Winslet joked.

The actress also shared at the time that the cast and crew filmed a scene in an infinity pool where “water was constantly flowing and you could hear the constant sound of water.” As she explained, everyone is “totally fixated” on the “last 22 minutes” of the film, “because you can hear that sound of water the whole time.”