Olivia Wilde ties a flannel shirt around her waist while on the set of her film Don’t Worry Darling

She received rapturous reviews for her directorial debut feature Booksmart last year.

And Olivia Wilde was hard at work on her follow-up film Don’t Worry Darling when she was spotted on its set on Tuesday in Palm Springs, California.

The 36-year-old actress-turned-director rocked a low-key look while with a plain white T-shirt and a red and black plaid flannel shirt tied around her waist.

Behind the lens: Olivia Wilde, 36, kept her look causal with a red and black plaid shirt tied around her waist while directing her film Don’t Worry Darling in Palms Springs on Tuesday

Olivia’s scarlet nails matched her shirt, and she kept the rest of her ensemble casual with black track pants and Vans checkerboard slip-on sneakers.

She alternated between wearing her caramel-colored locks down around her shoulders and tying them back in a bun.

The House star’s production has been operating under COVID-19 safety procedures in order to begin filming back in October, so she and the rest of her crew wore masks to prevent the spread of the virus.

Few details have been released about the movie’s plot, but her crew was seen filming around a sign indicating nuclear waste contamination that was placed for the production.

Casual: Olivia's scarlet nails matched her shirt, and she kept the rest of her ensemble casual with black track pants and Vans checkerboard slip-on sneakers

Casual: Olivia’s scarlet nails matched her shirt, and she kept the rest of her ensemble casual with black track pants and Vans checkerboard slip-on sneakers

The boss: Olivia is directing, producing and playing a supporting role in Don't Worry Darling, a psychological thriller

The boss: Olivia is directing, producing and playing a supporting role in Don’t Worry Darling, a psychological thriller

Florence Pugh is following up her acclaimed turn in Greta Gerwig’s Little Women as Alice, an unhappy housewife in the 1950s.

Former One Direction singer Harry Styles plays her husband Jack, who keeps a dark secret from his wife.

The stacked cast also includes Chris Pine as the mysterious leader of a worksite just outside of town, as well as supporting roles for Olivia, Crazy Rich Asians’ Gemma Chan, and the comedians Nick Kroll and Kate Berlant.

KiKi Layne, whose performance in 2018’s If Beale Street Could Talk was acclaimed by critics, signed on to the film in early October, after Dakota Johnson was forced to drop out of the film due to a scheduling conflict.

Olivia and her stars had to cease work on the film for two weeks in early October after a crew member tested positive for COVID-19, though none of the principal cast were infect. 

Despite the secrecy around the film, the screenplay that inspired it was a hot property prior to filming, when it appeared on the 2019 Black List, a selection of the best regarded screenplays floating around Hollywood that haven’t been produced yet.

All-star cast: Florence Pugh follows her acclaimed turn in Little Women as Alice, a 1950s housewife; seen in February

New role: Singer Harry Styles plays her husband Jack, who keeps a dark secret from his wife; seen in February

All-star cast: Florence Pugh follows her acclaimed turn in Little Women as Alice, a 1950s housewife. Singer Harry Styles plays her husband Jack, who keeps a dark secret from his wife 

Taking a break: Olivia updated her Instagram followers early in November after the production shut down for two weeks when a crew member tested positive for COVID-19

Taking a break: Olivia updated her Instagram followers early in November after the production shut down for two weeks when a crew member tested positive for COVID-19

In November, it was revealed that Olivia and her longtime partner Jason Sudeikis had ended their engagement after almost a decade together.

The couple were ‘never going to get married’ and often ‘butted heads’ before quietly separating earlier this year, Us Weekly reported at the time.

So far, the two have managed to be engaged coparents to their two children: Otis, six, and Daisy, four.

One area of contention was where they chose to live.

‘Of course, there were arguments and fights over career decisions and where to live. Like most couples, they had disagreements, they were bicoastal but Jason loved living in New York and Olivia, who was born in NYC, was leaning more toward Los Angeles,’ an insider claimed.

Since news of the split broke, the two have been seen together looking cordial and even affectionate.

Splitsville: In November, it was revealed that Olivia and her longtime partner Jason Sudeikis had ended their engagement after almost a decade together; seen together in March 2019

Splitsville: In November, it was revealed that Olivia and her longtime partner Jason Sudeikis had ended their engagement after almost a decade together; seen together in March 2019 

Family: The couple have remained committed coparents to their two children: Otis Alexander, six, and Daisy Josephine, four

Family: The couple have remained committed coparents to their two children: Otis Alexander, six, and Daisy Josephine, four