A behind-the-scenes GPO Film Unit documentary (directed by Stuart Legg) that races from studio rehearsals and newsrooms to control rooms and transmitters, weaving speeches, music, and outside broadcasts—featuring voices like H. G. Wells and Ramsay MacDonald—into a kinetic portrait of how the BBC’s national “voice” is made.
| Actor | Role |
|---|---|
 Gilbert Keith ChestertonSelf | Self |
 H. G. WellsSelf | Self |
| SStuart HibberdNot listed | Not listed |
| RRev 'Dick' SheppardNot listed | Not listed |
 Val GielgudNot listed | Not listed |
| JJohn SharmanNot listed | Not listed |
 Humphrey JenningsNot listed | Not listed |
| AAdrian BoultNot listed | Not listed |
| QQueen Consort of George V MaryNot listed | Not listed |
| RRamsay MacDonaldNot listed | Not listed |
| JJohn ReithNot listed | Not listed |
| JJ. B. PriestleyNot listed | Not listed |
 George Bernard ShawSelf | Self |