Rupert Grint has risked upsetting parents of young Harry Potter fans - he's urging them to read controversial novel A Clockwork Orange.
The actor joined his former co-stars Daniel Radcliffe and Emma Watson in signing up to the American Library Association's READ campaign, which encourages children and teenagers to indulge in classic literature.
But Grint has made a macabre choice for his recommended reading - Anthony Burgess' rape-and-violence fuelled 1962 book.
Campaign posters show the three actors holding up their favourite novel, and Grint's co-stars have made a more sombre choice - Radcliffe loves Mikhail Bulgakov's The Master and Margarita while Watson recommends Shakespeare's Romeo and Juliet.