Titanic director tested theory Jack and Rose could both have survived on door

There are a number of popular conspiracy theories that people swear by: Paul McCartney being 'replaced' by Billy Shears, the Moon landing being a 'hoax', and The Simpsons writers having more than just a spooky knack for predicting real-life events.

Another myth that cinephiles have been back on forth on for almost three decades is whether Jack Dawson could’ve fit on the door with Rose DeWitt Bukater instead of freezing to death in Titanic.

Titanic director James Cameron, who called Dawson’s death an ‘artistic choice’ rather than a science-based decision, seemingly got sick of the rumours in 2023 and hired a team of people to recreate the iconic movie scene.

His goal? To figure out whether or not Leonardo DiCaprio’s character could’ve survived if the deuteragonist actually just budged up a bit on the door.

The ‘scientific study’ was conducted and shared during the National Geographic documentary Titanic: 25 Years Later with James Cameron - a celebration of the 11-time Oscar-winning film.

Speaking to the Toronto Sun about the experiment, Cameron, now 70, said: “We have done a scientific study to put this whole thing to rest and drive a stake through its heart once and for all.

“We have since done a thorough forensic analysis with a hypothermia expert who reproduced the raft from the movie.”

Cameron took two stunt people who were the same body mass as DiCaprio and Winslet at the time Titanic was released, and put them in ice water with sensors attached to them.

The first test they did was getting stunt-Dawson and stunt-DeWitt Bukater to climb aboard the door, to which they fit.

However, as the Financial Express reported, the pair were submerged in ‘dangerous levels’ of freezing water.

Cameron said that both would die if this were the case, so that’s a point to the original plot.

A 'scientific experiment' was conducted to put rumours to bed, once and for all (20th Century Fox)

In the second round, Cameron positioned his willing participants in plank pose, meaning their upper halves stayed above the water.

In this case, Jack could’ve lasted ‘hours’, according to the New Zealand-based star.

However, he remarked that the stunt doubles hadn’t experienced what his characters had - namely, experiencing the disaster of a ship striking an iceberg - so they probably would be too exhausted to maintain a plank position.

The third and final test saw the stunt people reenact the entire Titanic sequence.

That’s the running, the fighting, the swimming and the panic, as per the outlet.

According to Cameron, he then asked the person playing DeWitt Bukater to give Dawson her life jacket.

Titanic won 11 Academy Awards ( 20th Century Fox)

“He’s stabilised,” Cameron said in the documentary. “If we projected that out, he just might have made it until the lifeboat got there.”

The Avatar director argued that even if it’d been physically possible for Dawson to survive, he kind of needed to die for the rest of the cult classic to make sense.

“It’s like Romeo and Juliet. It’s a movie about love and sacrifice and mortality. Love is measured by sacrifice… Maybe after 25 years, I won’t have to deal with this anymore,” he joked.

So essentially, Cameron was always going to kill of DiCaprio’s role, even if it was physically possible to survive - which he proved it kind of was.

Titanic is currently streaming on Disney+ if you fancy studying the scene and scientifically recreating it at your local leisure centre.