Margot Robbie cuddles up to husband Tom Ackerley in a stunning Chanel dress as they attend the Oscars... after her new film Birds of Prey disappoints at the box office

Her new movie Birds of Prey may have had a lukewarm debut in the theatres over the weekend.

But Margot Robbie looked like she didn't have a care in the world as she attended the Oscars on Sunday.

The Australian star, who is up for Best Supporting Actress for her role in Bombshell, cuddled up to her husband Tom Ackerley for an intimate Polaroid ahead of walking the red carpet in Hollywood. 

Not a care in the world! Margot Robbie cuddled up to husband Tom Ackerley in a stylish  strapless dress as they attended the Oscars on Sunday

Not a care in the world! Margot Robbie cuddled up to husband Tom Ackerley in a stylish  strapless dress as they attended the Oscars on Sunday 

Chic in Chanel: Margot wore a navy blue Chanel gown from the Spring-Summer 1994 Haute Couture collection

Chic in Chanel: Margot wore a navy blue Chanel gown from the Spring-Summer 1994 Haute Couture collection

Margot donned a navy blue Chanel dress from the Spring-Summer 1994 Haute Couture collection. 

She also accessorised with a Chanel bag and Chanel fine jewelry. 

Margot brought back the classic French manicure on the red carpet, and enhanced her flawless complexion with a classic makeup look - a lined eye and ruby red lipstick. 

Nailed it: Margot brought back the classic French manicure on the red carpet

Nailed it: Margot brought back the classic French manicure on the red carpet

Chanel everything; She also accessorised with a Chanel bag and Chanel fine jewelry
Chanel everything; She also accessorised with a Chanel bag and Chanel fine jewelry

Chanel everything; She also accessorised with a Chanel bag and Chanel fine jewelry

Turning heads: She enhanced her flawless complexion with a classic makeup look - a lined eye and ruby red lipstick

Turning heads: She enhanced her flawless complexion with a classic makeup look - a lined eye and ruby red lipstick

Birds of Prey, the DC Comics' Harley Quinn spinoff, made a tepid debut in theaters over the weekend. 

The film opened in first place, but below expectations with US$33.3 million made in the US, according to studio estimates Sunday.

Birds of Prey (and the Fantabulous Emancipation of One Harley Quinn), an R-rated Warner Bros. release, arrived in cinemas while Margot is nominated for an Academy Award for her performance in Bombshell and the previous DC film, the $1 billion-grossing Joker, which is up for a leading 11 Oscars. 

Lukewarm: Birds of Prey, the DC Comics' Harley Quinn spinoff, made a tepid debut in theaters over the weekend

Lukewarm: Birds of Prey, the DC Comics' Harley Quinn spinoff, made a tepid debut in theaters over the weekend

The numbers: The film opened in first place, but below expectations with US$33.3 million made in the US, according to studio estimates Sunday

The numbers: The film opened in first place, but below expectations with US$33.3 million made in the US, according to studio estimates Sunday

Stunning: Margot looked breathtaking in her billowing black gown

Stunning: Margot looked breathtaking in her billowing black gown

Will she win? Birds of Prey (and the Fantabulous Emancipation of One Harley Quinn), an R-rated Warner Bros. release, arrived in cinemas while Margot is nominated for an Academy Award for her performance in Bombshell

Will she win? Birds of Prey (and the Fantabulous Emancipation of One Harley Quinn), an R-rated Warner Bros. release, arrived in cinemas while Margot is nominated for an Academy Award for her performance in Bombshell

But despite those lead-ins, Birds of Prey came in for a rocky landing. It had been expected to open around US$50 million.

It fared similarly overseas, grossing an estimated US$48 million from 78 international markets.

Warner Bros. said the coronavirus impacted sales in Asia, though in South Korea, where Birds of Prey made $1.9 million, it came in second to a local release.

Happy days: But despite those lead-ins, Birds of Prey came in for a rocky landing. It had been expected to open around US$50 million

Happy days: But despite those lead-ins, Birds of Prey came in for a rocky landing. It had been expected to open around US$50 million

Expectations: Birds of Prey came in for a rocky landing. It had been expected to open around US$50 million

Expectations: Birds of Prey came in for a rocky landing. It had been expected to open around US$50 million

Naughty boy! Little Women star Timothée Chalamet photobombed Margot's 2020 Oscars red carpet photos
Naughty boy! Little Women star Timothée Chalamet photobombed Margot's 2020 Oscars red carpet photos

Naughty boy! Little Women star Timothée Chalamet photobombed Margot's 2020 Oscars red carpet photos 

I forgive you! Margot didn't mind and gave the handsome star a hug

I forgive you! Margot didn't mind and gave the handsome star a hug 

Laughing it off! Margot couldn't wipe the smile off her face when it happened

Laughing it off! Margot couldn't wipe the smile off her face when it happened

Rubbing shoulders: Margot posed for photos with filmmaker Quentin Tarantino, who directed her in Once Upon a Time in Hollywood

Rubbing shoulders: Margot posed for photos with filmmaker Quentin Tarantino, who directed her in Once Upon a Time in Hollywood

A vision: She was looking sensational in the stunning gown

A vision: She was looking sensational in the stunning gown

Birds of Prey doesn't have a China release scheduled, and Suicide Squad never opened there.

Cinemas in the country, the world's second largest movie market, have shut down amid the coronavirus outbreak.

Birds of Prey, the week's lone new wide release, cost approximately US$100 million to make.

Cathy Yan directs the Suicide Squad spinoff, which Margot also produced. Margot stars as Harley Quinn, the crazed criminal who after splitting with Joker is a solo vigilante. Reviews were mostly favorable, with an 80% fresh rating on Rotten Tomatoes. Audiences gave it a B-plus CinemaScore.

Fancy seeing you here! Margot bumped into her The Wolf of Wall Street and Once Upon a Time In Hollywood co-star, Leonardo DiCaprio

Fancy seeing you here! Margot bumped into her The Wolf of Wall Street and Once Upon a Time In Hollywood co-star, Leonardo DiCaprio