The filmmakers implemented a fly-on-the-wall documentary filmmaking approach, in which no dialogue external to the subjects of the film is included, and the sounds of the factory and the dialogue of the workers is prioritized. In order to make focal such an audio/visual approach, the filmmakers implemented the use of lavalier microphones to effectively balance worker dialogue amid noise emanating from the factory's machinery. The voice-over narration provided by the factory workers was often recorded at their respective homes, independently from the factory setting.