The school scenes were shot in Wakita, Oklahoma, the same town Tornade (1996) was shot. There is a museum that has props from the movie.
The film was shot simultaneously in both colour and black and white.
Filmed in 20 days.
Malin Akerman and Adelaide Clemens both worked on Watchmen projects. Akerman starred in the 2009 film adaptation - Les gardiens (2009), while Clemens starred in the 2019 mini-series - Watchmen (2019).