Oscars red carpet fashion: Emma Stone, Bradley Cooper and Margot Robbie turn on the style

The fashion is as important as the films at the Oscars, and the stars turned on the style as they walked the red carpet ahead of Sunday's film awards in Hollywood.

Emma Stone (above) was among the best-dressed in a custom Louis Vuitton pale mint peplum gown. She was later named best actress for Poor Things.

Margot Robbie was controversially not nominated for her role in Barbie, but she was one of the fashion winners in a black sequined Versace gown.

Co-star Ryan Gosling brought some 'Kenergy' in a classic black outfit with sparkly silver trim.

In a nod to the preppy style of 1995 film Clueless, Billie Eilish's outfit included a Chanel tweed blazer, tall socks and heeled Mary Jane shoes. The singer won best song for her Barbie theme What Was I Made For?

America Ferrera wore a shimmering pink gown in a tribute to Barbie. Ferrera had a best supporting actress nomination for her role in the film.

Da'Vine Joy Randolph continued her ability to bring dramatic looks to red carpets this awards season, wearing a shimmering periwinkle dress with pom-pom sleeves and a long train. She went on to scoop the prize for best supporting actress.

Best actress nominee Lily Gladstone honoured her Native American heritage by wearing a collaboration between Gucci creative director Sabato De Sarno and Indigenous artist Joe Big Mountain.

Bradley Cooper, who was nominated for best actor for Maestro, wore a black suit without a tie but with turquoise buttons to add a modern twist. His mother Gloria was his date.

Cooper's Maestro co-star Carey Mulligan, who was up for best actress, oozed elegance in a black-and-white mermaid dress.

Jennifer Lawrence brought polka dots to the red carpet with a gorgeous Dior gown.

Dune star Zendaya chose a single-strapped striking rose Armani Privé dress with a metallic palm tree pattern.

Her Dune co-star Florence Pugh strode down the red carpet in a sculpted and beaded Del Core design.

Emily Blunt and husband John Krasinski had a matching cream look, with the best supporting actress nominee in a structured Schiaparelli gown with Superman-style underwear detailing.

Paul Giamatti, who walked the carpet with actress and girlfriend Clara Wong, was among the favourites in the best actor category for his role in The Holdovers.

Cillian Murphy, who won best actor for his role in Oppenheimer, looked dapper in traditional suit and bow tie.

Last year's best actor winner Brendan Fraser returned with his partner Jeanne Moore.

Last year's best actress winner Michelle Yeoh also returned, wearing a silver custom Balenciaga Couture gown.

Lupita Nyong'o arrived with Stranger Things actor Joseph Quinn - her co-star in the forthcoming A Quiet Place prequel, Day One.

Anya Taylor Joy, who was one of the night's presenters, wore a strapless sequined Dior Haute Couture ball gown.

Jamie Lee Curtis won best supporting actress last year, and was among the presenters this time.

Dwayne "the Rock" Johnson sported a silk slate three-piece suit and a burgundy silk scarf.

Singer Ariana Grande channelled Glinda the Good Witch, her character in the new Wicked films, in a custom Giambattista Valli Haute Couture creation.

Her Wicked co-star Cynthia Erivo wore a green leather Louis Vuitton design - a nod to her character Elphaba.

Pitch Perfect star Brittany Snow co-ordinated with the Oscars statuettes in a dazzling gold dress.

Snow stars in Oscar-nominated short film Red, White and Blue, which was made by British director Nazrin Choudhury.

Eugene Lee Yang made a dramatic entrance in a voluminous burgundy statement skirt and matching jacket. He voices a heroic knight in Netflix's animated sci-fi comedy Nimona, which was nominated for best animated feature.

English actress Andrea Riseborough, who was nominated for best actress last year, adapted a Scottish tartan pattern in her polo neck dress.

High School Musical star Vanessa Hudgens - who co-hosted the official pre-show coverage - revealed her pregnancy with a full-length black gown that showed off her baby bump. The actress is married to baseball player Cole Tucker.

Julianne Hough, co-host of the official red carpet show alongside Hudgens, wore billowing white trousers with shimmery detailing around the bust.

Actress and host Liza Koshy took a tumble on the red carpet, but she managed to style it out.

Grace Linn was probably the oldest person to attend this year's ceremony at 101. She inspired and appears in The ABCs of Book Banning, which was up for best documentary short, and her outfit was a testament to her love of books.

West Side Story star Rita Moreno - who won an Oscar 62 years ago - is 92 years young.

Sean Wang made as short film about moving in with his grandmothers during Covid - and they are all at the Oscars after Nai Nai & Wài Pó was nominated for best documentary short.

British influencer Amelia Dimoldenberg, best known for her Chicken Shop Dates series, fronted the Oscars' official social media campaign. She plumped for a classic full-length dress in pink.

Members of the Native American Osage Nation brought some of their traditional finery to the red carpet. Martin Scorsese's Killers of the Flower Moon, which tells the story of the persecution of the Osage Nation in the 1920s, was up for 10 awards but did not end winning any.

By Ian Youngs, Scarlett Harris, Yasmin Rufo, Helen Bushby & George Burke.