Kristen Stewart flashes her abs in a white crop top as leaves a nightclub in the early hours

Kristen Stewart attempted to make a low-key exit as she left Groucho nightclub in Soho, London in the early hours of Friday morning, following her earlier appearance at the premiere of Princess Diana biopic Spencer amid BFI London Film Festival.

The actress, 31, flashed a glimpse of her toned abs in a white crop top as she exited the swanky venue at 1.05am following a fun night out with her pals, hours after turning up the glam on the red carpet.

Kristen kept things casual for the evening, teaming her top with a long, black coat and light blue jeans as she made a hasty exit towards her waiting car.

Quick exit: Kristen Stewart attempted to make a low-key exit as she left Groucho nightclub in Soho, London in the early hours of Friday morning

The Twilight star completed her relaxed her look with white socks and monochrome trainers. 

She swept her strawberry blonde locks into a loose up ‘do, while highlighting her features with a subtle make-up palette. 

Kristen clearly wasn’t in the mood to pose for photos as she tried to shield her face before heading off with her companions.

Her late night outing comes after royal experts slammed her new Diana film Spencer saying it strips the late princess of her ‘respect and dignity’ and is ‘unnecessarily gratuitous’.

Keeping it casual: The actress, 31, flashed a glimpse of her toned abs in a white crop top as she exited the swanky venue at 1.05am following a fun night out with her pals

Scenes in the film show Diana – who died in a car crash at the age of 36 – breaking down in tears in front of her son Prince William as she battles her eating disorder and self harms.

In particularly distressing scenes from the new movie an emotional Diana fantasises about throwing herself down the stairs and choking on a pearl necklace gifted to her by husband Prince Charles.

Other parts of the film detail her bulimia as she vomits and even experiences hallucinations about her own death.  

Wow! Hours earlier, Kristen had dazzled on the red carpet of the premiere of Princess Diana Biopic Spencer, in which she plays the titular role

Stunning: Kristen exhibited her svelte waist in a translucent sparkling grey gown dress embellished with a flurry of multi-coloured gems and buttons

Luminous: The Twilight star put her impressive collection of tattoos on display while wearing her strawberry blonde tresses in gorgeous beachy waves

Ingrid Seward, editor in chief of Majesty Magazine, told The Sun of the film: ‘It is really cruel to portray her like this. It is totally unnecessary.

‘William and Harry will be very angry and hurt about this. They will find it horrible that their mother is being portrayed in such a huge movie this way.’

Royal biographer and expert Penny Junor agreed, and said: ‘It is unnecessarily gratuitous. 

Reaction: Royal experts recently slammed Kristen’s new Diana film Spencer saying it strips the late princess of her ‘respect and dignity’ and is ‘unnecessarily gratuitous’

‘Poor William is all I can say, and let’s leave Diana with a shred of respect and dignity.

‘I know William was there when she was unhappy but it sounds to me the movie is factually incorrect.’

In another scene William is seen begging his mother to come down for dinner after she locks herself in her room after self harming with wire cutters.  

Tough: Scenes in the film show the late Princess – who died in a car crash at the age of 36 – breaking down in tears in front of her son Prince William as she battles her eating disorder and self harms

William screams: ‘Mummy, mummy… mummy, you said to tell you if you are being really silly. You are being really silly.’  

‘Please mummy, we have to sit down before Granny. Mummy just switch off your mind. Don’t think about it until after dinner for everyone’s sake.’

Diana then exits the room with makeup streaming down her cheeks and asks her son if he saw Camilla Parker Bowles at the church on Christmas Day morning. 

Upset: In particularly distressing scenes from the new movie an emotional Diana fantasises about throwing herself down the stairs and choking on a pearl necklace gifted to her by husband Prince Charles (pictured with children Harry and William)