Demi Moore stuns in an extravagant silk gown as she joins glamorous Rosie Huntington

Demi Moore stunned in an extravagant gown as she attends The Substance premiere with Rosie Huntington-Whiteley and Alessandra Ambrosio at the Cannes Film Festival on Sunday night.

Demi, 61, wore the warm silver dress, which featured an arrowed segment sticking straight out with silver and diamond jewellery.

English model Rosie, 37, looked fantastic in a sleeveless black jumpsuit covered in streams of silver tassels which reached the floor.

Rosie slid her hands into her pockets as she walked the red carpet for the film at the 77th annual Festival.

Also on the carpet was Brazilian model Alessandra, 43, who turned heads in a form-fitting shiny and patterned sleeveless silver dress. 

Demi Moore, 61, stunned in an extravagant gown as she attends The Substance premiere with Rosie Huntington-Whiteley, 37, and Alessandra Ambrosio, 43, at the Cannes Film Festival on Sunday night

English model Rosie looked fantastic in a sleeveless black jumpsuit covered in streams of silver tassels and Brazilian model Alessandra turned heads in a form fitting shiny dark silver dress

Of the three gorgeous women, only Demi stars in The Substance, a body horror film written and directed by Coralie Fargeat.

The Substance follows Demi as ageing film star Elizabeth Sparkle who goes to extreme lengths to stay youthful. 

Cannes' synopsis of the film reads: 'Have you ever dreamed of a better version of yourself? You should try this new product: The Substance. It changed my life. 

'With The Substance, you can generate another version of yourself, younger, more beautiful, more perfect… Just share the time. 

'One week for one, one week for the other. A perfect balance of seven days. Easy isn’t it? If you follow the instructions, what could go wrong?”

Demi's co-stars in the film, which was selected to compete for a Palme d'Or, include Margaret Qualley and Dennis Quaid. 

At the premiere, Demi, Dennis, Margaret, and their French director Coralie, joined together for a sweet group photo.

Alessandra was accompanied on the red carpet by Saudi Arabian film producer Mohammed Al Turki - and the two could not keep their hands off of each other.

Also in attendance was Italian singer and model Carla Bruni who flashed some skin in a loose black jumpsuit 

Demi wore the warm silver dress, which featured an arrowed segment sticking straight out with silver and diamond jewellery

She flashed her Hollywood white teeth as she smiled, drawing attention to her prominent cheekbones

Demi looked gorgeous in the statement dress, which showed off a tasteful amount of her cleavage

Demi laughed and put one hand on her hip and another on her The Substance co-star Dennis Quaid's arm

Demi and Dennis then joined Margaret Qualley (next to Demi), who also stars in the film, and the film's French director Coralie Fargeat for a photo

Coralie wore a stunning baby pink turtle neck sleeveless dress which was raised slightly at the front

Demi and Margaret shared a sweet embrace after their photo

Cannes is the world's biggest film festival, first conceived in 1939 as an alternative to the then-fascist-influenced Venice Film Festival.

It has been held annually since 1946 except in 1948 and 1950, when it was cancelled due to lack of funds.

The festival is known for its carefully selected programme of films that have gone on to Oscar glory or launched the careers of directors like Quentin Tarantino.

Cannes' top prize is the Palme d'Or, or Golden Palm, whose past winners include Taxi Driver, Apocalypse Now, Pulp Fiction, The Pianist and Parasite.

Jane Campion became the first female director to win in 1993 with The Piano, followed by a nearly three-decade gap until Julia Ducournau received the award for Titane in 2021.

Justine Triet became only the third female director to take the prize last year with Anatomy of a Fall.

Also at Cannes Film Festival is the honorary Palme d'Or, which is awarded in recognition of notable bodies of work, with past recipients including Harrison Ford, Jane Fonda and Clint Eastwood.

There are two honorary winners this year: George Lucas of 'Star Wars' and 'Indiana Jones' fame, and Japanese animation legend Studio Ghibli, the first group to receive the prize.

Other awards include the Grand Prix, jury prize, best director, best actor, best actress, best screenplay and best short film.

The Cannes Film Festival officially kicked off on Tuesday night as celebrities walked the red carpet into the plush Grand Theatre Lumiere to honour Hollywood actor Meryl Streep before settling in to watch this year's opening film, The Second Act.

Rosie looked effortlessly cool in her outfit which she styled with large silver paperclip-like earrings and a slicked back bun

Rosie put on a very busty display in the jumpsuit - almost spilling out of it at one point

The beauty, who has dabbled in acting, is engaged to established star Jason Statham who did not join her for the trip 

Meanwhile, Alessandra was accompanied on the red carpet by Mohammed Al Turki

Alessandra and the Saudi Arabian film producer could not keep their hands off of each other 

At one point, Mohammed fell into Alessandra's arms and she laughed

Also in attendance was Italian singer and model Carla Bruni who flashed some skin in a loose black jumpsuit

Carla, whose shoulders were exposed, blew a kiss to fans

She upped her sex appeal by putting the leg of her sunglasses in her mouth