Her dress, by Lebanese designer Jean Louis Sabaji, was the talk of the red carpet at the premiere of Solo: A Star Wars Story on May 15.
Kristen Stewart attended the screening of the film "Black all kinds of things over" by spike Lee.
As the cooler, slightly more hip, younger sibling to the Academy Awards, the Cannes Film Festival is now captivating the film and fashion world.
The Cannes dress code became a controversial topic in 2015 when a number of women attending a premiere were stopped from entering for wearing flat soled shoes instead of high heels.
Unfortunately for Sara, her stunning gown got caught on her heel later during the proceedings - forcing her to free it.
Kristen Stewart ditched her heels on the way to "BlacKkKlansman" premiere at the Cannes Film Festival.
"Things have to change immediately", she said of the wardrobe guidelines.
As such, exactly 82 women demonstrated at this year's festival in protest. She utilized the platform of Cannes Red Carpet to draw the world's attention towards Killing of Palestinians.
The Cesar-winning actress also stormed the red carpet in another way when she teamed up with Blanchett and DuVernay on Saturday for a march highlighting the lack of female directors included at Cannes over the years. You can not come in.' Then (I'm going to say), 'Neither is my friend. It's just like you simply can not ask me to do something that you are not asking him. Does he have to wear heels?' It can work both ways. "I understand the whole theme with black ties, but we need to allow women to walk without heels".