Margot Robbie says Quentin Tarantino wanted her feet dirty in the "Once Upon a Time… in Hollywood."

Robbie told Vogue that her feet got dirty while she was walking around the movie set.

She said Tarantino asked her not to clean her feet before shooting the theater scene.

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Margot Robbie said that the director Quentin Tarantino specifically asked her not to clean her feet before her iconic scene in "Once Upon a Time… in Hollywood."

Robbie starred in the 2019 Tarantino movie as a fictionalized version of the late actor Sharon Tate, who reportedly walked around barefoot because she disliked wearing shoes.

In one scene, Robbie removes her shoes while in a movie theater and puts her feet up on the seat in front of her. The scene quickly became a big talking point, even leading to jokes from Robbie's costar Brad Pitt.

During a new episode of Vogue's "Life in Looks" YouTube series, Robbie said that the decision was spontaneous and that she didn't intend for her feet to appear dirty in the movie.

"Shortly after this, my character walks into a movie theater to see herself on the big screen, and she kind of kicks off her go-go boots and puts her feet up and settles in to watch the movie," the "Barbie" star recalled. "But my feet were dirty because I'd been walking around set. They stayed dirty in the movie because Quentin said, 'Don't. Don't clean them.'"

Margot Robbie as Sharon Tate in "Once Upon a Time in Hollywood." Sony Pictures Releasing

Robbie added: "Someone ran in to do it, and he was like, 'No, it's real. Keep it.'"

Tarantino has been questioned about the abundance of shots of women's feet in his movies. The YouTube channel TopMotionClips reported that 36 shots of people's feet — both bare and in shoes — were used in "Once Upon a Time… in Hollywood."

Tarantino defended the prevalence of bare feet in his movies in an interview with GQ in 2021.