The Game of Thrones star, 33 – who plays retail assistant Kate in the romantic comedy – commanded attention as she graced the festive-inspired carpet in a quirky black cocktail dress, complete with a ruffled bodice and a plunging keyhole neckline.
Actress Emilia was in good company as she arrived arm-in-arm with Tom actor Henry, 32, and was also joined by her on-screen mother and the film’s producer, Emma Thompson, who stood out from the crowd in a vibrant purple number, tied in with bedazzled star-shaped stamps worn across her crown.
The Breakfast at Tiffany’s star put on an uncharacteristically daring display as she flashed a glimpse of her cleavage in the flirty number, which was also decorated in sparkly silver sequins.
Slightly toning down her appearance, Emilia boosted her petite physique in a pair of classic black ankle-strap heels.
The beaming celeb injected even more sophistication into her look with a glittery diamond bracelet, teamed with a matching ring and simple stud earrings.
With her tresses gathered into a ponytail with a black ribbon, Emilia complemented her out-of-this-world beauty with a generous sweep of make-up.
How sweet: The actress was in good company as she arrived arm-in-arm with her co-star Henry Golding, who plays her love interest Tom in the film
Looking good: Australian singer Kylie Minogue was also in attendance, where she looked absolutely sensational in a fuchsia gown, embellished with red roses patterns and a sheer tulle skirt
Plot: In the film, written by Emma and her husband Greg Wise, Emilia’s character Kate (pictured), who has often been unlucky, finds work as a Santa’s elf for a department store and unexpectedly finds love with Tom, played by Henry
Crazy Rich Asians star Henry looked typically suave in a black velvet blazer, a turtleneck jumper and green tartan bottoms.
In the film, written by Emma and her husband Greg Wise, Emilia’s character Kate, who has often been unlucky, finds work as a Santa’s elf for a department store and unexpectedly finds love with Tom, played by Henry.
It proved to be a family affair for producer Emma, 60, who attended the event with the film’s co-writer and her husband, Greg, and their daughter Gaia, 19.
Australian singer Kylie Minogue was also in attendance, where she looked absolutely sensational in a fuchsia gown, embellished with red roses patterns and a sheer tulle skirt.
In her element: The Breakfast at Tiffany’s star put on an uncharacteristically daring display as she flashed a glimpse of her cleavage in the flirty number, which was also decorated in sparkly silver sequins
Style savvy: Slightly toning down her appearance, Emilia boosted her physique in classic black ankle-strap heels, while Crazy Rich Asians star Henry looked typically suave in a black velvet blazer, a turtleneck jumper and green tartan bottoms
Fan favourite: The beaming celeb smiled as she approached fans with selfies during her sophisticated appearance
OMG! The excited star couldn’t contain her delight as she admired Emma’s glittery hairstyle, which was covered in bedazzled star-shaped stamps worn across her crown
The movie is inspired by the late George Michael and even boasts new music from the Wham! frontman. Earlier in the day, Emilia compared her own real-life illness to that of her character in her new film.
The actress discussed having two brain aneurysms in her 20s, with her movie alter-ego similarly suffering a life-threatening condition.
Opening up about her medical history to hosts Phillip Schofield and Holly Willoughby, the screen star said filming scenes was a ‘serendipitous’ experience.
Making a statement: The award-winning actress turned heads with her bold hairstyle as she dressed her tresses into a slick ponytail to ensure focus remained on the purple glitter
Rare appearance: It proved to be a family affair for producer Emma, who attended the event with the film’s co-writer and her husband, Greg Wise, and their daughter Gaia, 19
Hugs all around: The Sense and Sensibility star was cheery as she warmly embraced both her long-term partner, 53, and their child at the starry premiere
Nice to see you! Emma flashed a wide grin as she took snaps and signed autographs with waiting fans
Looking good: The human rights activist stepped out in a furry trouser suit, comprising flared bottoms with slits up either side, and a coordinating long-line mac
All in the details: Keeping comfortable, Emma strolled along the baby blue carpet in metallic silver loafers, and sported a pillar-box manicure
During Monday’s This Morning, she explained: ‘I’ve had two brain haemorrhages. The first one I was 22 and the next one was kind of two years later, so there was a huge amount that I could relate to with what Kate was going through.
The TV and film star was quick to insist that she didn’t take on the role because she had a similar situation to Kate’s.
She continued: ‘I worked very hard and sort of got through it that way, Kate doesn’t – slightly different reactions to it! It wasn’t the reason why I took this job, it wasn’t the reason why the script spoke to me so much.
Having fun: The All the Lovers singer was in her element as she took photos with American filmmaker and the movie’s director Paul Feig
All eyes on her: Kylie took centre stage as photographers captured her every move
Look at her glow: The Melbourne-born musician accentuated her youthful-looking appearance with matte foundation and glittery silver eyeshadow
On cloud nine: Over the summer, the former Neighbours actress hit the top spot with her seventh UK number one album Step Back in Time: The Definitive Collection
‘But in kind of delving into Kate as a character it just became this kind of serendipitous thing that allowed me to explore it within myself and within her.’
The actress previously thanked the ‘unbelievable’ paramedics for ‘keeping her laughing’ as they battled to save her life when she suffered her first brain aneurysm.
Emilia endured two health scares in 2011 and 2013, and has said that during her first experience with an aneurysm, the emergency staff who brought her to hospital were ‘so gracious’.
Starry: Author Kathy Lette (L) wowed in a multi-coloured number as she held a present, while live artist Bryony Kimmings (R) oozed sophistication in a black gown with puffy satin blue sleeves
Close-knit group: Wham! star Andrew Ridgeley joined Alice Dallin-Walker, Sara Dallin, Keren Woodward at the event
Date night: Martin Kemp cuddled up to singer wife Shirlie (L), while journalist Lise Mühlhausen posed with spouse Peter Mygind (R)
How sweet: Paul flashed a peace sign at cameras as his supportive wife Laurie was also in attendance
She explained: ‘It was a brain aneurysm that ruptured, and it was pretty traumatic. The paramedics were unbelievable.
‘They’d given me drugs so I was in less pain, wrapped me up like a tortilla and made me laugh the whole way to the hospital.
‘There I was, bleeding in the brain, and there we were in this ambulance having an absolute giggle. They were so gracious.’
Last Christmas hits cinemas November 7 in the UK, and November 8 in the USA.
Ecstatic: Taking the party inside, Emilia and Emma continued to share hugs during their evening of fun
Giggly: The actresses appeared to share a joke amongst themselves as they laughed at the event
Ensemble: David Livingstone, Henry, Emilia, Emma, Paul and Greg looked delighted as they posed for a group photo
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