Trivia

In a newspaper, an article states that Heath asks for support against miners. This refers to the Prime Minister of UK Edward Heath. One of the measures Heath announced on December 13th, 1973 was the '3-Day-Week', which was in operation from 31 December 1973 to 7 March 1974. This was meant to reduce commercial electricity consumption by moving from a 5-day to 3-day working week and encouraging non-essential businesses to close for 4 days per week. Electricity production was limited due to strike action preventing coal deliveries to power stations and so limiting drain helped prevent total blackouts, although most households and areas across the whole UK did still experience multiple power outages during this period.

The eerie, unsettling music played over the opening credits is a children's choir singing a hymn, but in reverse.