Harry Potter and the Philosopher's Stone (released in the United States and India as Harry Potter and the Sorcerer's Stone) is a 2001 fantasy film directed by Chris Columbus and distributed by Warner Bros. Pictures. It is based on J. K. Rowling's 1997 novel of the same name. The film is the first instalment of the Harry Potter film series and was written by Steve Kloves and produced by David Heyman. Its story follows Harry Potter's first year at Hogwarts School of Witchcraft and Wizardry as he discovers that he is a famous wizard 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.