The Devil's Backbone (Spanish: El espinazo del diablo, literally The Backbone of the Devil) is a 2001 Mexican/Spanish gothic horror film written by Guillermo del Toro, Antonio Trashorras and David Muñoz, and directed by Guillermo del Toro. It was independently produced by Pedro Almodóvar.
It is set in Spain, 1939 during the Spanish Civil War. During the director's commentary in the DVD, del Toro stated that, along with Hellboy, this was his most personal project. He has called Pan's Labyrinth a spiritual sequel to The Devil's Backbone. The filming location was shot in Madrid.