'Harry Potter' actress Emma Watson is set to follow co-star Daniel Radcliffe by appearing in a more adult role.





Emma Watson, 16 - who plays Hermione Granger in the wizard movies - has been lined up to star as a rebellious ringleader in a new St Trinian's movie.



Daniel Radcliffe has shocked theatre fans by stripping off for his stage debut in 'Equus' - but Emma will be keeping her clothes on for her first venture outside Hogwarts.



A source said: "Emma has agreed in principle to star, pending final approval of the sсriрt, which is still undergoing re-writes. She thinks it will be a lot of fun and a good stepping stone away from the world of Harry Potter."



Emma will star alongside Rupert Everett - who will take on the role of cross-dressing headmistress Millicent Fritton.



Emma is no stranger to girls' boarding schools - she attends the single-sex Headington School in Oxford, England.



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