Uma Thurman reveals her cleavage in risqué black evening gown as she leads the glamour at lavish Icons Of Style opening night dinner

Striking: Uma Thurman led the way on Thursday evening as the indelible connection between American cinema and fashion was celebrated at a lavish central London dinner

Steady on: But while the statuesque actress looked stunning in an elegant black evening dress, her ensemble was inadvertently overshadowed by her prominently exposed cleavage

There it is: With a risque plunging neckline the gown also exposed a subtle hint of lacy black bra as she sashayed inside for the Icons of Style opening night dinner

Head-to-toe black: The Slap star paired her full-skirted frock with a matching handbag and kitten heels

Fierce after 45! Uma wore her extension-free locks down and sported 'nude' make-up for the fashionable bash

On/off flames: Joining the single mother-of-three in Britain was her hotelier beau André Balazs, whom she previously dated between 2004-2007

Stepping out: Uma enjoyed a late night out at the lavish dinner, which celebrated the launch of the curated film series Icons of Style 

Fashion fans: The Nymphomaniac star later posed for a fun group snap with Vanity Fair's Elizabeth Saltzman, Nightcrawler actress Rene Russo, and shoe designer Manolo Blahnik

Michael Kors creation: Meanwhile, the 36-year-old Oscar nominee was her usual effervescent self in a belted, patterned pantsuit selected by stylist Sophie Lopez

'Lob' = long bob: Hudson and Uma share the same hairstylist David Babaii, who chopped Kate's locks last week

Thick as thieves: The Good People actress appeared to enjoy herself at the boozy soirée where she posed with lace-clad model Poppy Delevingne

Mingling with mavens: Kate also caught up with journalist Richard Buckley, who finally wed designer Tom Ford last year after nearly 30 years together

Man of the hour: Speaking of designers, Michael Kors co-hosted the Icons of Style dinner with Vanity Fair staff

His muse: The 55-year-old New Yorker - born Karl Anderson - just so happened to create Hudson's glittery Met Gala gown earlier this month (pictured May 4)

The Fabletics co-founder wrote on Instagram: 'Let's do this! Can’t wait to talk about some iconic fashion and film moments with Rene Russo, Michael Kors and Ali MacGraw!'

Evergreen: Also celebrating at the Ham Yard Hotel were Kors' other two style icons Ali MacGraw and Rene Russo, who looked fantastic at 76 and 61, respectively

Fun: (L-R) Lily Donaldson, Mario Testino, Uma Thurman, Michael Kors and Manolo Blahnik

Terrific trio: IMG model Lily Donaldson (M) put on quite a sideshow while sandwiched between How to Be Parisian author Caroline De Maigret (L) and Storm model Poppy Delevingne (R)

Statuesque: The British 28-year-old went full Hollywood glam in her strappy black halter dress and white furry coat

Preppy blonde: The 29-year-old sister of Cara wore her blonde locks sideswept and rocked a bizarre white lace and striped two-piece

Double take! Star Wars starlet Daisy Ridley (R) - who plays Rey in The Force Awakens - posed with her lookalike younger sister, model Kika-Rose (L)

Out of this world: New Star Wars actress Daisy caught the eye in an emerald green evening dress

Conservative: Vanity Fair's Jemima Goldsmith wore a black jumpsuit beneath a blazer while British singer Florrie opted for a fur-collared navy top and matching culottes

Five months married! Enjoying a drink at the bar were the happy newlyweds - Argentine-Japanese model Jessica Michibata and British Formula One driver Jenson Button

Brunettes: Penny Dreadful star Sarah Greene went strapless while Les Misérables star Samantha Barks got leggy in similar patterned mini-dresses

Spring moment: Blooming in floral frocks were English model Erin O'Connor, Net-a-Porter's Natalie Massenet, and English actress Cush Jumbo

In good company: Uma arrived with Chiltern Firehouse owner André 

Shoulder to shoulder: Uma reunited with fashion photographer Mario Testino at the event on Thursday evening