Trivia: Because of a combination of cost-saving measures and the ongoing COVID-19 pandemic, filming had to be limited to only eighteen days.
Trivia: At 5'5" (165 cm), Daniel Radcliffe is seven inches (17 cm) shorter than "Weird Al" Yankovic.
Trivia: Patton Oswalt was originally supposed to play Dr. Demento, but he broke his foot the day before filming began.