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 Deathly Hallows – Part 2 him once and for all. The film stars Daniel Radcliffe as Harry Potter, alongside Rupert Grint and Emma Watson as Harry's best friends, Ron Weasley and Hermione Granger. Principal photography began on 19 February 2009, and was completed on 12 June 2010, with reshoots taking place in December 2010, more than ten years after filming started on the first instalment of the series. "Part 2" was released in 2D, 3-D and IMAX cinemas worldwide from 13–15 July 2011, and is the only "Harry Potter" film to be released in 3-D. The film became a commercial success and was critically acclaimed,