She is taking AS-levels in English literature, geography and art history and hopes to study philosophy at Cambridge University.

But Potter fans need not worry: the latest instalment of the popular film series, Harry Potter And The Order Of The Phoenix, opens on July 13, and Emma says she "definitely intends" to do another one.

She admitted: "I would do Harry Potter for nothing. It's not really anything to do with money."

The young actress swaps her neatly pressed Hogwarts school uniform for Yves Saint Laurent