PICS: Keira Knightley dares to bare at Dangerous Method premiere

The starlet showed off her slender frame in a form-fitting backless gown at the movie event in London

It's been almost a year since Keira Knightley was a regular on the red carpet, but the British beauty was back with a bang in London last night at the premiere of new movie A Dangerous Method.

PICS: KERIA KNIGHTLEY'S STYLE HIGHS AND LOWS

Scoring serious style points for her red carpet ensemble, the starlet dared to bare in a sweeping backless Burberry gown, which showed off her tiny frame.

Treating snappers to her trademark smouldering stare, Keira completed her premiere look with a sultry smokey eye, gentle marcel waves and a slick of pretty pink to highlight her bee-stung pout.

The actress was joined on the red carpet by co-stars Michael Fassbender and Viggo Mortesson to debut the David-Cronenberg flick.

And afterwards the trio hit a swanky premiere afterparty, where they were joined by Keira's new beau, rocker James Righton.

Speaking of her racy new film role - in which she plays the lover and patient of psycho-analyst Carl Jung - Keira revealed she 'almost turned it down' after reading some of film's saucier scenes.

'I did think about turning it down because of the two scenes of a sadomasochistic nature and I thought it's all going to come out and all of a sudden it's all going to all be about that,' she explained.

'And weirdly, apart from this country, it hasn't been, so that's been really great.

'In England it's got mentioned all the time. I don't know what that says about us! We obviously like spanking, I don't know.'

Right then.

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PICS: KERIA KNIGHTLEY'S STYLE HIGHS AND LOWS

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