Emma, 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 script, 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.