Magical creatures in Harry Potter Granger's pet cat. Crookshanks was purchased by Hermione in a shop called Magical Menagerie in the third Harry Potter book; Harry Potter and The Prisoner Of Azkaban. Crookshanks resembles a Persian Cat, and Rowling has described him as half-Kneazle, an intelligent cat-like creature sensitive to dishonesty, explaining his identification of the rat 'Scabbers' as Peter Pettigrew, and of Sirius Black in his dog form. Crookshanks is seen in Prisoner of Azkaban talking to Padfoot in the school grounds. Crookshanks was portrayed by a cat called Crackerjack. Dobby is a "house-elf" in the Harry Potter series. He was once owned by
Harry Potter and the Philosopher's Stone (film) and begins his education. The film stars Daniel Radcliffe as Harry Potter, with Rupert Grint as Ron Weasley, and Emma Watson as Hermione Granger. Warner Bros. bought the film rights to the book in 1999 for a reported £1 million ($1.65 million in 1999). Production began in the United Kingdom in 2000, with Chris Columbus being chosen to create the film from a short list of directors that included Steven Spielberg and Rob Reiner. Rowling insisted that the entire cast be British and Irish, and the film was shot at Leavesden Film Studios and historic buildings around the United Kingdom.