Writer/director Paul Schrader stated in a Q&A at the Rotterdam Film Festival 2018 that he was surprised while editing the film to notice how many similarities there were with Taxi Driver (1976), a film he also wrote.
When Paul Schrader first approached Amanda Seyfried, he was surprised to find that she was pregnant. When she expressed interest in the project, he wrote her pregnancy into the script.
Shot in 20 days on a $3.5m budget.
This is the first movie in which Cedric The Entertainer is credited under his real name, Cedric Kyles.