Several of the cast members actually grew up in cults.
The songs played and sung by Adon Fanion (who portrays "Jonah") were performed live on-set and are the versions used in the film.
The cast lived and slept in their character cabins and bunks and lived as a real commune for a week during filming of the movie.
Although the film is fictional, some events and situations are inspired by real cults of the 20th century such as The Manson Family, Jonestown, The Branch Davidians, and Heaven's Gate.