Alice Bell was Emily Barclay's body double for the film. Driving, texting and snorting cornflour instead of speed.
Loosely based on the murders by siblings Mark Valera and Belinda van Krevel.
Lilya says her parents are from Poland. In real life, Mia Wasikowska's mother is Polish.
Danny refers to his "samurai sword". The Japanese term for such a sword is a "tachi" or "katana".
Mia Wasikowska's debut.