Emma Watson in Mansons Cinderella July 15, 2009 Hermione Granger teaming up with Marilyn Manson? Harry Potter starlet Emma Watson has reportedly been cast in Marilyn Manson’s upcoming remake of Cinderella. The Sun reports that the actress, who plays Hermione Granger in the Potter series, is thought to have signed on to play the beloved princess in a gothic retelling of the children’s fairytale. Manson is understood to be developing a musical version of the classic story which would require Watson to make her debut screen outing as a singer. Harry Potter and the Half-Blood Prince is in Irish cinemas from Friday, July 17th.