Greta Gerwig looks chic in an oversized tuxedo jacket as she joins Will Ferrell and his close friend Harper Steele at the London screening of their poignant new Netflix documentary

Greta Gerwig looked chic in an oversized black tuxedo jacket as she hosted a London screening of new Netflix documentary Will & Harper in London on Wednesday afternoon. 

The American actress, 41, stunned as she stepped out topless in the satin-structured black blazer with oversized lapels while attending the event alongside its two principal stars, Will Ferrell and Harpet Steele. 

She layered her jacket over a floor-length silky black skirt, which had a detailed lace trim around the hemline.

Adding inches to her petite frame, she slipped into a pair of towering black leather stilettos with a pointed-toe design.

To accessorise, the blonde beauty finished her ensemble with a myriad of gold necklaces and small gold hoop earrings.

Greta was busy during the event as she welcomed stars, such as Will, on stage for a question and answers session.

Greta Gerwig looked chic in an oversized black tuxedo jacket as she attended a screening of   Netflix documentary Will & Harper at The Mayfair Hotel on Wednesday

Greta Gerwig looked chic in an oversized black tuxedo jacket as she attended a screening of   Netflix documentary Will & Harper at The Mayfair Hotel on Wednesday

Will Ferrell and his close friend Harper Steele - the subjects of Josh Greeenbaum's mew documentary - were also in attendance at the London event

Will Ferrell and his close friend Harper Steele - the subjects of Josh Greeenbaum's mew documentary - were also in attendance at the London event

For the glitzy evening, Will kept it casual in a brown knitted jumper layered under a blue denim shirt. 

The actor, 57, paired his jacket with a pair of brown trousers and chunky green suede boots. 

Meanwhile, close friend and co-star Harper looked sensational as she stylish brown knit dress which featured a black lining down the front and sleeves. 

She paired her classy ensemble with a pair and black leather heeled boots and chunky green spectacles. 

Their film Will & Harper follow Will and Harper Steele as they take a cross-country road trip together to process the new stage of friendship after Steele comes out as a trans woman.

The log line reads as follows: 'When Will Ferrell finds out his close friend of 30 years is coming out as a trans woman, the two decide to embark on a cross-country road trip to process this new stage of their relationship in an intimate portrait of friendship, transition, and America.'

Will & Harper is directed by Josh Greenbaum, with whom they posed on the red carpet at the documentary's Sundance Film Festival premiere. 

They also took a group photo with crew members Chris Leggett, Jessica Elbaum and Rafael Marmor. 

Greta layered her jacket over a floor-length silky black skirt, which had a detailed lace trim around the hemline.

Greta layered her jacket over a floor-length silky black skirt, which had a detailed lace trim around the hemline.

The \actress was busy during the event as she welcomed stars, such as Will, on stage for a question and answers session

The \actress was busy during the event as she welcomed stars, such as Will, on stage for a question and answers session

Left to Right: Rafael Marmor, Greta Gerwig, Harper Steele and Will Ferrell

Left to Right: Rafael Marmor, Greta Gerwig, Harper Steele and Will Ferrell 

For the glitzy evening, Will kept it casual in a brown knitted jumper layered under a blue denim shirt
Meanwhile, Harper looked sensational as she stylish brown knit dress which featured a black lining down the front and sleeves

Will's co-star Harper Steele looked sensational as she stylish brown knit dress, which featured a black lining down the front and sleeves

She paired her classy ensemble with a pair and black leather heeled boots and chunky green spectacles

She paired her classy ensemble with a pair and black leather heeled boots and chunky green spectacles

Executive producer Jessica Sarowitz and her daughter Sarah were also spotted at the premiere in bold, colorful looks. 

Producers Elbaum and Marmor also posed for photos together ahead of the premiere in January.

The day before, Ferrell and Steele talked to The Hollywood Reporter about their road trip documentary and how the idea came to be.

'The conception of the whole discussion, for some reason in my head, was a documentary,' Ferrell explained.

'Of course, I made it clear to Harper, "I don't want to exploit our friendship, but this could, I think, be just a wonderful way for us to explore this topic",' he continued.

Addressing Harper, he explained that he thought it would be a great idea 'for me to learn [and] ask all the questions that I have about what you're going through and who you are, have you changed?

'And I think we eventually landed on the same square,' he continued. 'If we actually could convince someone to film it, that maybe it would be something that people would watch. 

'And it would just give them a different perspective or just show off the fact that two people can have a conversation about this.'

Will & Harper premiered at the 40th Sundance Film Festival on January, 22, 2024 and received a limited theatrical release in the United States on September 13. 

It began streaming worldwide on Netflix on September 27.