The songs that play a central part in the film were all written by director Philip Ridley and Nick Bicât, and were conceived as an essential element of the film at the script stage; they represent a continuation of the songwriting collaboration begun in 1995 with the film 'The Passion of Darkly Noon', when they wrote the song 'Who Will Love Me Now' for P.J. Harvey and the song 'Look What You've Done to my Skin' for Gavin Friday.
The trivia item below may give away important plot points.
At one point, Jamie watches an interview on the television with a leading doctor called Charles Perrault. This only serves to emphasize how much of the film is in Jamie's head as Charles Perrault was the French storyteller who created the fairy tale of Cinderella.