This document provides an overview and analysis of two early British documentary films: Nightmail (1936) and Heart of Britain (1941). It summarizes that Nightmail was one of the first documentaries produced by the GPO Film Unit that portrayed the dignity of the working classes while also employing staged elements. Heart of Britain was produced during World War II as a propaganda film to boost British morale and counter German propaganda by portraying ordinary British people surviving the war effort. Both films utilized techniques like voiceovers, music, and actual footage to construct narratives about British identity while also potentially disseminating ideological messages about class and gender.