'The devil's backbone' trivia and fun facts

Title

The film's title refers to the medical condition of spina bifida.

Described by Guillermo del Toro as being a sibling film to 'Pan's Labyrinth' (2006)

Was strongly inspired by the director's personal memories, especially his relationship with his uncle, who supposedly came back as a ghost.

Guillermo del Toro has said that this is his favorite movie of his own (2003).