Marion Cotillard oozes sex appeal in plunging leather mini-dress with train at premiere of It's Only the End of the World in Cannes

She rarely puts a fashion foot wrong.

So it's perhaps unsurprising that critically-acclaimed actress Marion Cotillard wowed when she attended the latest Cannes Film Festival premiere in France on Thursday evening.

The brunette beauty, 40, deftly commanded attention as she arrived at the screening of new movie It's Only The End Of The World at the Palais Des Festivals in the French Riviera town.  

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On fine form: Marion Cotillard wowed when she attended the latest Cannes Film Festival premiere in France on Thursday evening

On fine form: Marion Cotillard wowed when she attended the latest Cannes Film Festival premiere in France on Thursday evening

Stepping out alongside her co-stars, the Dark Knight Rises star looked the epitome of glamour in her choice of attire. Wearing a leather mini-dress with a plunging neckline, the acclaimed star - who first wowed in La Vie En Rose - was the centre of attention.

Strapless, sleeveless and boasting a high hemline, it also featured a long train which added even more sex appeal.

Wearing her hair in a stunning side-styled 'do, she spinkled the look with diamonds in the for of a Swarovski earrings and a matching bracelet, which cleverly caught the light.

Now that's a dress! Strapless, sleeveless and boasting a high hemline, it also featured a long train which added even more sex appeal

Now that's a dress! Strapless, sleeveless and boasting a high hemline, it also featured a long train which added even more sex appeal

Wearing her hair in a stunning side-styled 'do, she spinkled the look with diamonds in the for of a Swarovski earrings and a matching bracelet, which cleverly caught the light

Wearing her hair in a stunning side-styled 'do, she spinkled the look with diamonds in the for of a Swarovski earrings and a matching bracelet, which cleverly caught the light

Posing up a storm on the red carpet, the star was on fine form as she navigated the entrance to the event.  

Putting on a leggy display while managed to be both sexy and sophisticated, the look was a triumphant one for somebody who frequently appears on best-dressed lists. 

Not that she was the only star to attend the film's launch, of course. She was also joined by her co-stars: French actor Gaspard Ulliel, actress Lea Seydoux, director Xavier Dolan, Nathalie Baye and veteran screen star Vincent Cassel.

Taking the plunge: Marion's cheecky choice of dress also featured a plunging neckline which showcased her decolletage

Taking the plunge: Marion's cheecky choice of dress also featured a plunging neckline which showcased her decolletage

Looking good: Stepping out alongside her co-stars, the Dark Knight Rises star looked the epitome of glamour in her choice of attire

Looking good: Stepping out alongside her co-stars, the Dark Knight Rises star looked the epitome of glamour in her choice of attire

Line-up: French actor Gaspard Ulliel, French actress Lea Seydoux, Canadian director Xavier Dolan, French actress Marion Cotillard, French actress Nathalie Baye and French actor Vincent Cassel

Line-up: French actor Gaspard Ulliel, French actress Lea Seydoux, Canadian director Xavier Dolan, French actress Marion Cotillard, French actress Nathalie Baye and French actor Vincent Cassel

It's Only the End of the World is a 2016 Canadian-French drama film written, edited and directed by Xavier Dolan. 

The film is based on the play Juste la fin du monde by Jean-Luc Lagarce, but was named by Variety as 'the most disappointing film at Cannes'.

However, The Guardian gave it four stars saying 'The claustrophobia of family has rarely been so well-wrought as in the latest highly stylised – and highly polarising – drama by the French-Canadian enfant terrible'.

Good times: Canadian director Xavier Dolan and French actress Marion Cotillard pose up a storm at the film's premiere 

Good times: Canadian director Xavier Dolan and French actress Marion Cotillard pose up a storm at the film's premiere 

Marion's back! The star's gown boasted backless detail which added plenty of opportunity for Marion to flash the flesh

Marion's back! The star's gown boasted backless detail which added plenty of opportunity for Marion to flash the flesh

Dressed to impress: The entire cast and crew of the film turned heads as they stepped out in unison 

Dressed to impress: The entire cast and crew of the film turned heads as they stepped out in unison 

Three's a cool crowd: French actor Gaspard Ulliel, ench actress Lea Seydoux and French actress Marion Cotillard

Three's a cool crowd: French actor Gaspard Ulliel, ench actress Lea Seydoux and French actress Marion Cotillard

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