Emma Watson's biggest move since Harry Potter

26 September 2012 Last updated at 19:10 ET Help

Emma Watson - best known for playing Hermione Granger in the Harry Potter films - is starring in a new film called The Perks of Being a Wallflower.

She has taken on the role of an American high school student in an environment that is very different from Hogwarts.

Talking Movies' Tom Brook reports.

Talking Movies is broadcast on BBC World News on Saturday at 1330 GMT and Sunday at 0030, 0730 and 2030 GMT.

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