Margot Robbie Listened to the “Titanic” Score to Prep for a “Wolf of Wall Street ”Scene — While Kate and Leo Were in the Next Room

“It was very surreal,” the 'Barbie' star recalls

Margot Robbie is revisiting the “surreal” moment when she was listening to music from Titanic while the film’s stars, Leonardo DiCaprio and Kate Winslet, were in the next room.

The Barbie star is set to guest on the upcoming Nov. 26 episode of TCM and Max’s podcast Talking Pictures, according to Variety. During her chat with host Ben Mankiewicz, Robbie reveals her tried and true trick for conjuring up tears in a performance.

“I can even just hear the theme music of Titanic, and I’ll be bawling,” the three-time Oscar nominee explains. “And so that’s what I do on set if I need to cry in a scene.”

Related: A Timeline of Kate Winslet and Leonardo DiCaprio's Epic, Adorable, Award-Winning Friendship

Robbie even used the technique before filming an emotional scene in director Martin Scorsese’s 2013 film The Wolf of Wall Street. In the film, based on former stockbroker and convicted criminal Jordan Belfort’s 2007 memoir, Robbie starred opposite Titanic leading man Leonardo DiCaprio as a character based on Belfort’s ex-wife.

But on the day the scene was filmed, DiCaprio wasn’t the only Titanic alumnus on set, according to Robbie.

Related: The Cast of 'Titanic': Where Are They Now?

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“There was the big, crazy scene after I ask for a divorce and stuff. And Kate Winslet came to visit set, to visit Leo that day,” Robbie recalls. “I was in the room next to them, listening to the Titanic soundtrack trying to stay in sad, teary mode. And then I saw Kate Winslet and Leo walk past. It was very surreal."

Robbie, of course, is far from the only person with a soft spot for the music from the 1997 blockbuster. The Titanic soundtrack was a massive, best-selling hit, buoyed by Céline Dion’s platinum selling, Grammy-, Golden Globe- and Oscar-winning tear-jerker, “My Heart Will Go On.”