The part of "John" was recast during production, which resulted in a delay of 2 weeks.
The idea for the film came from a nightmare the director had, in which he was a homeless man surviving during the end of the world.
The burning television was an improvised prop discovered at the shooting location.
The liquid John drinks is a mixture of soda, coffee grounds, hot cocoa mix and warm water.
Conceived, implemented, and put into production in 3 weeks.