Original music and score by Adrian Brody, lead actor in and producer of this movie.
One of the main inspirations for the story came from the 1976 film "Taxi Driver."
Ten days into principal photography, filming was shut down by IATSE after the crew demanded union representation and the producers refused to sign a contract with the union. A few days later, an agreement was reached and photography resumed.
The vacuum cleaner says Electrolux 1954 but in 1954 the brand was spelled Elektrolux with k. Electrolux didn't change their name until 1957.
The number on the Bliss garbage trucks is their actual number, not a made-up "555" number. Brody went with Bliss on some of their garbage pickups so he could learn how to drive the truck.