Q: The Lovely Bones is a 2009 supernatural drama film directed by Peter Jackson and starring Mark Wahlberg, Rachel Weisz, Susan Sarandon, Stanley Tucci, Michael Imperioli, and Saoirse Ronan. The screenplay by Fran Walsh, Philippa Boyens and Jackson was based on the award-winning and bestselling 2002 novel of the same name by Alice Sebold. It follows a girl who is murdered and watches over her family from the in-between, and is torn between seeking vengeance on her killer and allowing her family to heal. An international co-production between the United States, the United Kingdom, and New Zealand, the film was produced by Carolynne Cunningham, Walsh, Jackson, and Aimee Peyronnet, with Steven Spielberg, Tessa Ross, Ken Kamins, and James Wilson as executive producers. Principal photography began in October 2007 in New Zealand and Pennsylvania, United States. The film's score was composed by Brian Eno.

Answer this question: what is the movie the lovely bones based on?
A: the award - winning and bestselling 2002 novel of the same name by Alice Sebold
Explain how we arrive at this answer:
Explanation: To answer the above question, the relevant sentence is: The screenplay by Fran Walsh, Philippa Boyens and Jackson was based on the award-winning and bestselling 2002 novel of the same name by Alice Sebold.