Titanic will forever remain in pop culture history. Mainly due to the amount of award nominations it garnered, and for sparking the Leonardo DiCaprio and Kate Winslet friendship we adore. Oh, and generally being a cinematic masterpiece.

But there also remains the never-answered, always pondered question: did Jack really have to drown in the freezing sea? Or was there room on floating door along with love interest Rose?

More than 20 years later, the debate continues Even among the A-List it seems, after DiCaprio's Once Upon A Time In Hollywood co-stars Margot Robbie and Brad Pitt waded into the debate on Tuesday.

Asked by MTV News if Jack could have fitted on the door, DiCaprio was quick to affirm his position on the matter: 'I have no comment', he said.

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For Robbie, meanwhile, the question evoked harrowing memories of watching the movie back in 1997: 'Oh my gosh, I remember bawling my eyes out to that movie when I was a girl.

'That is the biggest controversy in modern cinema,' she continued.

'Could you have squeezed on there?' Pitt - who said he's going to go back and watch Titanic to review this conundrum - asked DiCaprio teasingly, 'You could've couldn't you?'

To which the actor just laughed nervously and reaffirmed: 'No comment.'

Titanic
Getty Images//Getty Images

But Robbie was not quite done with her probing, asking if DiCaprio raised the size of the door with filmmakers at the time. Alas DiCaprio maintained his statement: 'Like I said, I have no comment.'

Quick side-note, it certainly seems like Pitt and Robbie are having the most fun during their press tour for the upcoming Quentin Tarantino film.

Don't believe us? Just look at Pitt photobombing Robbie's photocall with balletic jetés:

Photo Call For Columbia Pictures' "Once Upon A Time In Hollywood"
Jean Baptiste Lacroix//Getty Images

Anyway, back to the debate. In 2017 Winslet appeared on the Late Show With Stephen Colbert saying that Jack 'could have tried a bit harder' to get on the door and conceded that there might well have 'been room for two'.

The question has also been put to Titanic's director James Cameron, who usually responds by ridiculing the debate and stressing that it all comes down to artistic choice.

'I've never really seen it as a debate, it's just stupid,' he told the BBC earlier this year. 'There's no debate, but if you really want to unearth all the dumbass arguments associated with it, yes... could Romeo have been smart and not taken the poison? Yes.... It sort of misses the point, it's called writing,' he laughed.

Kate Winslet And Leonardo DiCaprio In 'Titanic'
Archive Photos//Getty Images

In 2017, Cameron was equally as blunt, saying Jack was always going to die so it would have happened door or no door.

'Had he lived, the ending of the film would have been meaningless,' he told Vanity Fair. 'The film is about death and separation, he had to die. So whether it was that or whether a smoke stack fell on him, he was going down. It's called art, things happen for artistic reasons, not for physics reasons.'

Jack DiCaprio, we can categorically say we'll never let go.

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Olivia Blair
Entertainment Editor (Luxury)

Olivia Blair is Entertainment Editor (Luxury) at Hearst UK, working across ELLE, Esquire and Harper's Bazaar. Olivia covers all things entertainment and has interviewed the likes of Margot Robbie, Emma Stone, Michaela Coel and Ryan Gosling over the years.