She found fame worldwide as ‘goody two-shoes’ Hermione Granger in the Harry Potter series.

So it’s only  natural that Emma Watson should be keen to sink her teeth into something a little more grown-up in her new work.

And it appears the 22-year-old has done just that, and steams up the screen as a sultry burlesque dancer in the just-released trailer for Stephen Chbosky’s The Perks of Being a Wallflower.

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A little different to Harry Potter: Emma Watson is sultry as a burlesque dancer in the trailer for The Perls of Being a Wallflower

Little nervous: Emma has admitted that she found the prospect of taking on the grittier role a little daunting

Emma plays Sam, a free spirit who becomes the love interest of awkward teen Charlie, played by Logan Lermanm, who played d’Artagnan in last year’s The Three Musketeers.

Her character is seen dancing enthusiastically at the homecoming dance, standing up in an open-topped car with the wind in her hair, and taking to what looks like a school stage in a raunchy burlesque get-up during the preview.

Her carefree persona is clearly a front however, as at one point she asks the film’s protagonist Charlie: ‘Why do I, and everyone I love, pick people who treat us like we’re nothing’.

Show him a good time: Sam and Patrick welcome Charlie into their group

The film is based on the 1999 novel of the same name by Stephen Chbosky, which provoked some controversy with its handling of drugs, homo𝓈ℯ𝓍uality and teen culture.

The story follows Charlie, a misfit teenager who arrives at a new High School without friends, any idea how to make them.

He is taken under the wing of senior student Sam and her stepbrother Patrick.

Charlie is bewitched by Sam, and she becomes his main love interest, for much of the story an idealised dream figure for the awkward teen.

Emma was understandably a little anxious about making the transition into slightly grittier material.

‘I was very nervous to that stuff,’ she admitted at the MTV Movie Awards yesterday. ‘It was tough.’

Competition: Sam is much sought-after by the other boys, so Emma must have used all her charm for the role