She's got some front: Game Of Thrones star Natalie Dormer takes the plunge in a low-cut dress at Hugo gallery party

PUBLISHED: 22:44, 30 July 2013 | UPDATED: 01:00, 31 July 2013

We're used to seeing Natalie Dormer showing some major cleavage in her roles in Game Of Thrones and The Tudors.

So we wonder if her GOT character Margaery Tyrell would wear this plunging neckline if she existed in contemporary modern day?

The English actress, 31, opted for a very-low cut blue Hugo dress as she attended the launch of a new exhibition at London's Saatchi gallery.

All eyes on her: Natalie Dormer wore a daring blue Hugo dress for the opening of the Hugo: Red Never Follows exhibition on Tuesday night

Futuristic: Natalie wore a pair of reflective silver heels and carried a matching clutch

The Berkshire-born blonde teamed the fitted dress with a futuristic pair of silver high heels, which she teamed with a matching clutch bag.

Natalie was one of a host of stars who attended the private view of the HUGO: Red Never Follows exhibition, which celebrates the 20th anniversary of the designer brand.

Aside from Game Of Thrones and a new role as Irene Adler in American TV drama Elementary, Natalie has been cast in the big screen adaptation of the play Posh.

In demand: With roles in Game Of Throne and Elementary, Natalie has now been cast in the film adaptation of Posh

Legend: Photographer David Bailey and his wife Catherine

Natalie will play a leading role in the film version of Laura Wade's play, inspired by Prime Minister David Cameron's time in the infamous Bullingdon Club during his Oxford days.

She said: 'I am sworn to secrecy about it, but of course I’m delighted.'

With her career hotter than ever, the actress recently admitted her wedding plans to Irish actor fiance Anthony Byrne had taken a back seat.

The couple have been engaged since 2011, but have been too busy to plan their nuptials.

Colourful: Great Expectations star Vanessa Kirby wore a black and blue Hugo dress, while Welsh actress Alexandra Roach opted for a red trouser suit

Natalie told the Daily Telegraph recently: 'We are still very much engaged. We've just been so busy that we haven't managed to get around to planning it.

'It won't be a big one... We were thinking of around 40-odd guests.'

Meanwhile, also at Tuesday's private view was photographer David Bailey, comedian Rob Brydon, model Bip Ling, Great Expectations star Vanessa Kirby and Welch actress Alexandra Roach.