She has been hot on the promo trail in support of the biggest movie of her career.

And Margot Robbie looked effortlessly chic as she joined co-star Leonardo DiCaprio and director Quentin Tarantino at the Once Upon A Time In Hollywood photocall in Rome, Italy, on Saturday.

The Suicide Squad star, 29, stunned in a black shirt dress with a red, green and blue deer pattern on it and dramatic should pads.

Wow: Margot Robbie looked effortlessly chic as she joined co-star Leonardo DiCaprio and director Quentin Tarantino at the Once Upon A Time In Hollywood photocall in Rome, Italy, on Saturday

Margot styled her blonde ombré locks into a sleek blow-dried hairdo.

The Oscar nominee, who keeps her flawless complexion in check with 111Skin’s Rose Gold Brightening Facial mask, added a slick of glamorous make-up which included a red lipstick and bronzer.

The actress accessorised her ensemble with a pair of gold ruffled heeled mules and a Foundrae ring.

Margot was joined by her co-star Leonardo, who she previously starred alongside with in the 2014 film The Wolf of Wall Street.

Glamorous: The Suicide Squad star, 29, stunned in a black shirt dress with a red, green and blue deer pattern on it and dramatic should pads

Blonde bombshell: Margot styled her blonde ombré locks into a sleek blow-dried hairdo, she added a slick of glamorous make-up which included a red lipstick and bronzer

Details: The actress accessorised her ensemble with a pair of gold ruffled heeled mules and a Foundrae ring

The 44-year-old wore black jeans with a matching T-shirt, he added a brown suede jacket, white trainers and black sunglasses.

Director, Quentin, was also present and he went for a more casual look of black jeans and a blue flannel shirt, which he teamed with brown sunglasses and white trainers.

Not seen was fellow leading actor Brad Pitt – although he was present at the film’s Berlin premiere on Thursday, he appeared to be absent from proceedings in Rome.

Pals: Margot was joined by her co-star Leonardo, who she previously starred alongside with in the 2014 film The Wolf of Wall Street

Dapper: The 44-year-old wore black jeans with a matching T-shirt, he added a brown suede jacket, white trainers and black sunglasses

Casual: Director, Quentin, was also present and he went for a more casual look of black jeans and a blue flannel shirt, which he teamed with brown sunglasses and white trainers

Missing: Not seen was fellow leading actor Brad Pitt – although he was present at the film’s Berlin premiere on Thursday, he appeared to be absent from proceedings in Rome

Film: The film is the director’s first movie not being released by Harvey Weinstein and sees Leo and Brad Pitt bring the golden age of Hollywood back to life