Natalie Dormer dons shades and a walking cane as she looks effortlessly chic while filming new movie In Darkness

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She skyrocketed to fame thanks to her portrayal of Margaery Tyrell on Game of Thrones.

But Natalie Dormer, 34, swapped her medieval attire for a chic all black outfit as she continued to film her upcoming movie In Darkness across London on Tuesday.

The actress, who is set to play the troubled character of Sofia, donned a pair of black glasses and carried a walking cane as she remained in character while taking a break from the gruelling day of filming.

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Working hard: Natalie Dormer, 34, swapped her medieval ensembles for a chic all black outfit as she continued to film her upcoming movie In Darkness across London on Tuesday

The blonde looked effortlessly chic as she wore a knee-length stylish coat over cropped black trousers and a crisp white shirt, worn under a crouched top.

Adding a retro vibe, the Hunger Games star donned faux leather monk shoes, while toting an oversized cream shoulder bag.

With her long blonde tresses scrapped in an elegant up-do, Natalie showed off her flawless complexion as she opted for a minimal make-up look. 

Natalie chatted to her male co-star in between scenes, who was dressed in a quirky ensemble featuring a stripped jumper, leather jacket and pork pie hat, while carrying a violin.

Stylish star: The actress, who is taking the lead in the revenge thriller, carried a walking cane as she remained in character during the grueling day of filming

The film follows a blind musician who hears a murder committed in an apartment upstairs. The scenes will form part of new thriller set for release in 2017.

Natalie, whose fiance Anthony Byrne is directing the film, is taking the lead in the revenge thriller, which will also star model and actress Emily Ratajkowski and Joely Richardson.  

With the film's director her fiancé, Natalie also took control behind the scenes - having co-written the screenplay for the flick with her long-term beau Anthony.

Talking about her experience of creating the psychological thriller, the blonde confessed to People: 'It's tough! I don't know if you've ever been in a writing room but I wouldn't recommend it with your other half.'

Break time: The film, which is set for release in 2017, follows a blind musician who hears a murder committed in an apartment upstairs

However difficult, the actress did reveal to The Telegraph later that the process was ultimately satisfying. 

The star revealed: 'I try to look for the thing that is going to challenge me next, for the thing that takes me out of my comfort zone.'

She added: 'I've learnt so much about the mechanics of how a film is made. To see and appreciate that you're a cog in a wheel of a much bigger thing happening in front of and behind the camera is a healthy thing for an actor.'

'Now I'm just dying to get on set and tell the story. It's scary because we don't have a lot of time. But nothing worth doing isn't scary, right?' 

Moving on: Natalie looked a far cry from her Game Of Thrones character Margaery Tyrell