Olivia Wilde and her boyfriend Harry Styles touched down in Venice separately for the Don't Worry Darling premiere amid the rumoured behind-the-scenes drama.
The highly-anticipated film - which also stars Florence Pugh - finally premieres at the Venice Film Festival on Monday.
Even though the movie has yet to be released, cracks reportedly started to show behind the scenes about casting and bitter relationships.
In pictures shared by TMZ, Olivia, who directs and stars in the movie, arrived in Italy looking like a million bucks.
She rocked a cream blazer and matching trousers. The 38-year-old completed the look with a fabulous pair of cowboy boots.
The star accessorised her ensemble with a pair of black sunglasses and left her brown hair down in loose waves.
Meanwhile, Harry, 28, was spotted on his ones in a gorgeous pink blazer and a Gucci sweater underneath.
He also rocked baggy jeans, a black face mask and a leopard-print suitcase.
It comes as Florence – who pulled out of a few interviews – is confirmed to have skipped both the press conference and the photo call for the movie.
It was also recently revealed that Harry actually joined the cast at the last minute, replacing Shia LaBeouf.
Shia claims to have quit the film due to scheduling issues, but Olivia said she sacked him to "protect" her cast.
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Speaking to Variety, Olivia said: "His process was not conducive to the ethos that I demand in my productions.
"He has a process that, in some ways, seems to require a combative energy, and I don’t personally believe that is conducive to the best performances.
"I believe that creating a safe, trusting environment is the best way to get people to do their best work. Ultimately, my responsibility is to the production and to the cast to protect them."
However, a leaked video has now emerged online of Olivia begging Shia to help her "figure this out" as Shia hit back at her claims he was fired from the movie.
Meanwhile, there have been rumours of a feud between Olivia and Florence.
A source told the New York Post that Florence didn’t consider Harry and Olivia's relationship at the time to be very professional.
"I can tell you for a fact that Flo seeing Olivia and Harry all over each other on set did not go down well," the insider told the publication.
According to The Sun, Florence is now refusing any interviews for the movie ahead of its premiere.
"Florence is disappointed with this narrative and she doesn’t want to be dragged into the squabbles between other talent," said a source.
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