The working title for this film was "Lower Bay". Lower Bay is the name of a real downtown Toronto subway station. As of 2017 the station is not open to public access, as it doubles as a location for movie and television shoots. Productions shot here include Pas un mot... (2001), End of the Line (2007), Johnny Mnemonic (1995), Le Gardien du manuscrit sacré (2003), Mimic (1997), La recrue (2003), Total Recall : Mémoires programmées (2012), Suicide Squad (2016), Resident Evil: Retribution (2012), Max Payne (2008), 16 blocs (2006), 16 blocs (2006), Mesure d'urgence (1996), Coup de force (1996), Les rats (2002), and L'Attaque du métro 123 (2009).
Christopher Lloyd and Richard Gunn appeared on Granite Flats (2013).