While the pair have been coy about their relationship, Wilde posted a black-and-white snap of Styles on Instagram on Monday, February 15, to praise the 27-year-old for taking on a supporting role in Don’t Worry Darling.
"Little known fact: most male actors don’t want to play supporting roles in female-led films," the 36-year-old wrote. "The industry has raised them to believe it lessens their power (i.e financial value) to accept these roles, which is one of the reasons it’s so hard to get financing for movies focusing on female stories."
"No joke, it is harrrrrd to find actors who recognize why it might be worth it to allow for a woman to hold the spotlight. Enter: @harrystyles, our 'Jack.' Not only did he relish the opportunity to allow for the brilliant @florencepugh [Florence Pugh] to hold center stage as our 'Alice,' but he infused every scene with a nuanced sense of humanity.
"He didn’t have to join our circus, but he jumped on board with humility and grace, and blew us away every day with his talent, warmth, and ability to drive backwards."
Styles replaced Shia LaBeouf in the film in September 2020, after LaBeouf reportedly exited due to scheduling conflicts. However, the director and the One Direction alum hit it off on set.
Following Wilde’s split from Jason Sudeikis in November, Styles and Wilde were spotted holding hands in January.
"Everyone knows Harry's a big flirt, and she fell under his spell," a source previously told OK!. "There was something strong happening between her and Harry from the beginning. They started spending all their free time together, including in her trailer and at the house Styles was borrowing from his pal James Corden.
"Harry happens to like older women and thinks Olivia is beautiful, strong, smart and talented," the insider explained. "She likes guys who are a little offbeat and finds Harry is a total joy to be around."
Another source shared that the couple shares everything, including clothes, as the "Watermelon Sugar" singer is known for his daring sense of style.
"Harry is also happy to loan Olivia hits pants or his dresses," a pal said. "Expect to see them borrowing from each other more in the future."
Meanwhile, production on Don’t Worry Darling seems to have wrapped up. "My co-conspirator and hero. We did it," Wilde captioned a pic with Matthew Libatique. "It wasn’t easy. But we f***ing did the damn thing. Love you, Matty."
Kate Berlant also confirmed that Don’t Worry Darling wrapped up when she shared a group photo. "Thank you, @oliviawilde 🖤," she captioned the snap where Styles could be seen with his arm around Wilde.