Lockjaw's second-in-command and chief interrogator, Danvers, is played by a non-professional actor: James 'Jim' Raterman, a security consultant and former HSI Special Agent.
The title of the film is taken from a 1969 statement from the revolutionary political group The Weather Underground that was published in an issue of New Left Notes, a left-wing periodical from the Students for a Democratic Society. The statement read: "From here on out, it's one battle after another - with white youth joining in the fight and taking the necessary risks. Pig Amerika beware. There's an army growing in your guts and it's going to bring you down." The first and last sentences of this statement are both used in dialogue in the first act of the film.
"Green Acres, Beverly Hillbillies, Hooterville Junction" are lyrics from Gil Scott-Heron's song "The Revolution Will Not Be Televised," which is heard in the film. Each is a reference to a popular 1960s TV series, Hooterville being the fictional community in La fattoria dei giorni felici (1965) and Petticoat Junction (1963).
Was originally going to be called The Battle of Baktan Cross, the name of the fictional California town in the film, where the protagonist has been living under the radar. This would also presumably be a shout-out to La battaglia di Algeri (1966), which is referenced throughout the film.
Filmed over 7 months across California (Eureka, Arcata, Sacramento, Stockton, San Juán Bautista, San Diego, Los Ángeles, Borrego Springs) and El Paso, TX.