Hermione Granger completing Snape's homework assignment from the class, while Crookshanks proves vital in exposing Scabbers as Peter Pettigrew, a friend of James and Lily Potter who revealed their whereabouts to Lord Voldemort the night of their murders, and was able to wrongly implicate Sirius Black (revealed to be Harry's godfather) in the Potters' deaths. The Time-Turner enables Hermione and Harry to rescue Sirius and the hippogriff Buckbeak. Hermione is horrified by the cruelty that house-elves suffer, and establishes S.P.E.W., the Society for the Promotion of Elfish Welfare, as an effort to gain basic rights for them. She is Bulgarian Quidditch prodigy
Harry Potter and the Half-Blood Prince (film) film stars Daniel Radcliffe as Harry Potter, alongside Rupert Grint and Emma Watson as Harry's best friends Ron Weasley and Hermione Granger. It is the sequel to "Harry Potter and the Order of the Phoenix" and is followed by "Harry Potter and the Deathly Hallows – Part 1". Filming began on 24 September 2007, leading to the film's worldwide cinematic release on 15 July 2009, one day short of the fourth anniversary of the corresponding novel's release. The film was simultaneously released in regular cinemas and IMAX 3D everywhere except North America, where its IMAX release was delayed for two