Emily Blunt wows in unusual patterned dress at Cannes photocall... as she greets newly engaged co-star Josh Brolin with a hug 

By Mail Online Reporter

Published: 05:09 EST, 19 May 2015 | Updated: 08:26 EST, 19 May 2015

Her new movie Sicario is a gritty drug-trade thriller but Emily Blunt brightened up proceedings at the photocall in Cannes on Tuesday. 

The 32-year-old actress wowed in a brightly patterned dress, which sat at a demure length just below her knee but featured a slit to flash her toned legs. 

Emily completed the outfit with yellow strappy sandals and opted for bright red lipstick.

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Stunning: Emily Blunt wowed in a brightly patterned dress at the Sicario photocall in Cannes on Tuesday 

In Sicario, Emily plays a police officer from Arizona who travels across the border to Mexico with a pair of mercenaries to track down a drug lord.

Blunt, who is married to John Kraskinski, was joined a the photocall by her newly engaged co-star Josh Brolin. 

Clearly still in a celebratory mood, he warmly greeted the gorgeous Brit with a hug. 

His spokesperson confirmed to Us Weekly on Monday that the 47-year-old Oscar-nominee is engaged to his former assistant Kathryn Boyd.

Red hot: A slick of red lipstick added to the beautiful blonde star's chic look 

Steal Emily's style this summer in an embroidered white dress

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Emily Blunt is the latest star to rock a photo call at the Cannes Film Festival.

The British actress is promoting her new movie Sicario and looked gorgeous in a rather fabulous dress by Peter Pilotto. The London based label is renowned for its bold clashing prints and we love the Pilotto take on embroidery in this design.

In a midi length with long sleeves it's a demure look, but that cute thigh split adds a touch of sex appeal. Unfortunately as Emily's LWD (little white dress...) is from the AW15 collection it's not available to buy online as yet.

But if you need some Pilotto in your life, and your wardrobe, this summer then click (right) to check out the current line at Net-a-Porter. With fans including Emma Watson, Jennifer Lawrence and Miranda Kerr, you'll be joining a pretty stylish bunch.

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A source revealed to the magazine that he popped the question last month.

The lovebirds are believed that have celebrated their engagement with a party in Cabo San Lucas, Mexico earlier this month with 'two tables worth of people' and a 'fixed menu,' Us reported.

The source said that Kathryn 'was sitting on his lap' during the dinner and 'they were kissing each other a lot and had their arms around each other.'

Congratulations: Emily greeted her co-star Josh Brolin, who recently got engaged to his former assistant Kathryn Boyd, with a hug 

Joking aroud: Blunt and co-star Benicio Del Toro appeared to be in high spirits at the photocall of the gritty drug-thriller 

The Goonies actor and the blonde began dating in March 2013 after she worked for two years as the movie star's assistant, the weekly reported.

Previously the No Country For Old Man actor was married to Diane Lane for eight years.

He filed for divorce from the 50-year-old Unfaithful actress in February 2013 - and one month later he found love with his assistant Kathryn.

London girl Emily Blunt dazzled in a Prada embellished gown

Her leading men: Emily shared a laugh with her two leading men, Benicio and Josh 

Bright spark: Her new movie Sicario is a gritty drug-trade thriller but Blunt brightened up proceedings at the photocall in Cannes on Tuesday

Rave reviews: Emily has been widely praised for her portrayal of an FBI agent in the flick 

The Men In Black 3 star's first marriage to actress Alice Adair ended in 1994 after six years.

Together they have son Trevor, 26, and daughter Eden, 20.

Josh was also briefly engaged to Minnie Driver in 2001.

Careful now: Emily pulled some funny faces as she made her way up the steps in high heels 

Perhaps the True Grit star's third time at the altar will prove to be as successful for him as it was for his father, actor James Brolin.

The twice-divorced 74-year-old will celebrate 17 years of marriage to Barbra Steisand in July. 

On the promotional trail: The trio were all smiles as they worked hard to promote the movie 

Mellow yellow: Emily matched her yellow sandals to the yellow pattern on her dress

Popular: The co-stars were surrounded by photographers as they promoted the movie 

Yes they Cannes: Benicio, Emily, director Denis Villeneuve and Josh explained the plot to assembled press 

Stunning: On Monday night, Blunt wowed in a simple cream dress at the Calvin Klein Cannes bash 

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