She has just revealed that she welcomed a daughter three weeks ago.
And Carey Mulligan showed off her impossibly petite post-baby body on Monday, as she attended the premiere of her new film Suffragette in New York City.
The confident 30-year-old wore a black prom dress which highlighted every inch of her slender figure and accentuated her tiny waist.
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Mamma mia: Carey Mulligan showcased her incredible post-baby body at the Suffragette premiere in New York City on Monday
The strapless frock had a large bow across the best and a delicate silk skirt which fell to Carey’s ankles.
The Education star also wore black Mary Janes with ribbon ties, and let her dress be the focus of her outfit by going without jewellery.
Carey wore her caramel hair loose in soft waves, and finished off her elegant look with winged black eyeliner and bright scarlet lipstick.
Bow-tiful: The actress wore a black prom dress which nipped in at her waist, and had a bow across the bust
Letting her dress do the talking: New mom Carey went without jewellery, and wore black Mary Janes with ribbon ties
Finishing touches: The 30-year-old styled her locks in soft waves and also wore scarlet lipstick and winged black eyeliner
The British beauty posed up with the film’s director Sarah Gavron, who along with other members of the crew carried a clutch bag with the word ‘votes’ printed across it.
Carey was not joined by her fellow leading ladies Meryl Streep and Helena Bonham Carter.
However two of Meryl’s beautiful daughters, Mamie and Louisa Gummer, were in attendance.
Making a statement: Carey posed with the film's director Sarah Gavron, who carried a clutch with 'votes' printed across it
The team: Carey and Sarah also posed with (L-R) writer Abi Morgan, Emmeline Pankurst's great-granddaughter Helen, producer Alison Owen, and producer Faye Ward
Representing Meryl: Streep's daughters Mamie (L) and Louisa Gummer looked gorgeous on the red carpet
Mamie, also an actress, wore a Self Portrait jumpsuit made up of a black crocheted blouse and navy culottes, which has previously been sported by the likes of Jessica Biel and Beth Behrs.
Meanwhile model Louisa showed off her long legs in a black and silver mini-skirt, paired with a matching coat and black ruffled shirt.
Also there to see the movie was Kelly Rutherford, who turned heads in a black zip-up leather top and skirt with long boots.
A bold look: Kelly Rutherford turned heads in her leather zip-up top and skirt with long boots
Keeping it simple: Amy Ryan sported a polka dot dress with sheer sleeves and neckline
Going gothic: Actress Tara Subkoff (L) and fashion designer Stacey Bendet knew how to turn heads
Among the other famous faces at the premiere were Queen Noor of Jordan, Birdman star Amy Ryan and Alice + Olivia designer Stacey Bendet.
Just a few days before the Big Apple event, protestors campaigning for more support for victims of domestic violence in Britain picketed the London premiere of the movie.
The demonstration was arranged by the Sisters Uncut group, who set of smoke flares and laid down on the red carpet in London's Leicester Square as they chanted 'dead women can't vote' and 'we are suffragettes'.
A regal display: Queen Noor of Jordan was among the other famous faces at the event
Different styles: While Erin Richards (L) kept it casual, Orange Is The New Black's Emma Myles dressed up
Carey and Helena Bonham Carter said the protest, which the group said was inspired by the suffragettes, was the 'perfect response' to the movie's message.
The period drama tells the story of the British women's suffrage movement of the late 19th and early 20th century, with Meryl playing British suffragette leader Emmeline Pankhurst.
Carey's character Maud Watts is a working wife and mother whose life is forever changed when she is secretly recruited to join the UK's growing suffragette movement led by Pankhurst.
Suffragette is out now in the UK and hits cinemas in the US on October 23.