Gillian Anderson, 49, dazzles in white maxi dress as she works the red carpet at the Southbank Sky Arts Awards with boyfriend Peter Morgan

It's the prestigious awards show which celebrates the best of British talent in the Arts.

And Gillian Anderson stunned on the red carpet at the Savoy Hotel in London as she attended the Southbank Sky Arts Awards on Sunday.

The X Files actress, 49, looked ethereal in a loose-fitting white floor-length dress.

Gorgeous: Gillian Anderson, 49, stunned on the red carpet at the Savoy Hotel in London as she attended the Southbank Sky Arts Awards on Sunday

Gorgeous: Gillian Anderson, 49, stunned on the red carpet at the Savoy Hotel in London as she attended the Southbank Sky Arts Awards on Sunday

The sleeveless gown featured oversized pockets and cinched in at the waist, highlighting her slim frame.

An uneven hemline allowed for a side glimpse of her calves to be seen, and drew attention down to the pair of wedged cork sandals she'd slipped into.

Gillian opted for a pillar box red polish on her toenails and accessorised with a skinny black choker weighed down with a silver charm.

Mixing metals, the actress also wore a multiple gold chain bracelets and several plain gold rings.

Stunning: The X Files actress looked ethereal in a loose-fitting white floor-length dress

Stunning: The X Files actress looked ethereal in a loose-fitting white floor-length dress

Unique sense of style: The sleeveless gown featured oversized pockets and cinched in at the waist, highlighting her slim frame

Unique sense of style: The sleeveless gown featured oversized pockets and cinched in at the waist, highlighting her slim frame

An uneven hemline allowed for a side glimpse of her calves to be seen, and drew attention down to the pair of wedged cork sandals she'd slipped into

An uneven hemline allowed for a side glimpse of her calves to be seen, and drew attention down to the pair of wedged cork sandals she'd slipped into

The mother-of-three clung onto the round gold handle of a red and white handbag and carried a pair of gold-rimmed, red tinted shades.

Gillian styled her short platinum blonde locks into a stylishly dishevelled up-do.

Making sure to put her pretty features on display, Gillian brushed on eyeliner, mascara and light pink lipstick to highlight her clear complexion.  

A splash of colour: Gillian opted for a pillar box red polish on her toenails and accessorised with a skinny black choker weighed down with a silver charm

A splash of colour: Gillian opted for a pillar box red polish on her toenails and accessorised with a skinny black choker weighed down with a silver charm

Finishing touches: Mixing metals, the actress also wore a multiple gold chain bracelets and several plain gold rings

Finishing touches: Mixing metals, the actress also wore a multiple gold chain bracelets and several plain gold rings

Gillian posed for photographs on the red carpet alongside her screenwriter beau.

The twice-divorced star has been in a relationship with The Crown writer Peter Morgan, 55, since 2016.

Peter, whose cinematic hits include The Queen and Tinker Tailor Soldier Spy, was married to Lila Schwarzenberg - born Princess Anna Carolina zu Schwarzenberg - until 2014. He already has five children with her.

Chic: Gillian styled her short platinum blonde locks into a stylishly dishevelled up-do

Chic: Gillian styled her short platinum blonde locks into a stylishly dishevelled up-do

Fashionista: The mother-of-three clung onto the round gold handle of a red and white handbag and carried a pair of gold-rimmed, red tinted shades

Fashionista: The mother-of-three clung onto the round gold handle of a red and white handbag and carried a pair of gold-rimmed, red tinted shades

Natural beauty: Making sure to put her pretty features on display, Gillian brushed on eyeliner, mascara and light pink lipstick to highlight her clear complexion

Natural beauty: Making sure to put her pretty features on display, Gillian brushed on eyeliner, mascara and light pink lipstick to highlight her clear complexion

The couple looked sweet as they snuggled up for the pictures at The Savoy, with Peter placing a reassuring arm around Gillian's waist. 

A host of other stars were in attendance at the glamourous event, including presenters Sian Welby, 31, and Melyvn Bragg, 78.

Poldark actress Eleanor Tomlinson, 26, and Benedict Cumberbatch, 41 both presented awards on the evening.  

Cute: Gillian posed for photographs on the red carpet alongside her screenwriter beau, Peter Morgan, 55, who she'd been dating since 2016

Cute: Gillian posed for photographs on the red carpet alongside her screenwriter beau, Peter Morgan, 55, who she'd been dating since 2016

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Gillian Anderson dazzles in white at the Southbank Sky Arts Awards

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