For the photocall of her new movie The Killing of the Sacred Deer, the Oscar victor wore an embellished detail filled print dress with emerald green sandal heels.
Directed by Yorgos Lanthimos, known for his extreme and weird style, the film follows an intense relationship between a teenage boy and a heart surgeon (Colin Farrell), which spirals out of control and drags Farrell's wife (Kidman), teenage daughter and young son into an impenetrable game of Russian roulette.
The Wearer: Nicole Kidman, who worked with stylist Julia von Boehm. "You have to give yourself over to the process and be willing to be changed and moulded - and I love that".
"I love to be asked to be in those things because that's just where I am", Kidman said.
But all eyes were on her clothes, not her films, when Kidman was on the red carpet overnight.
"I caught a train and sat in a dark theater with about three other people in an art cinema in Australia on a huge screen, and watched that film, and went, 'Wow, '" Kidman said. Much like Big Little Lies, Nicole says she can't turn away from compelling new projects.
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Kidman has been hailed as the "Queen of Cannes", appearing in four projects, two of which are in the running for the Palme d'Or, while another is the festival's first television screening. "I keep it simple in that regard". Earlier in the year at the 89th Academy Awards, the actress wore a breathtaking nude embellished Armani Privé gown from the designer's spring-summer collection.
Her choices are not so safe. Mitchell had already directed her in Rabbit Hole, a small indie film about maternal grief.
Actress Nicole Kidman, right, and director Yorgos Lanthimos pose for photographers during the photo call for the film The Killing Of A Sacred Deer at the 70th worldwide film festival, Cannes, southern France, Monday, May.
There have been times, Kidman says, when she has drifted away from that exploratory path. I think I have always had that slightly rebel spirit where I don't want to conform.
"I've been doing it a long time, I've run the gamut, you know", she said. "I am just happy to be here".