The music was composed by New Zealand trio Plan 9, consisting of David Donaldson, Steve Roche and Janet Roddick.[16]
The closing credits of the film feature an extended version of the song "Mademoiselle from Armentières", which was particularly popular during the war.[17] Jackson decided late in the production to use the song and there was little time to assemble the performers. Rather than have non-British men try to sing in British accents, native speakers in service to the UK government were recruited from the British High Commission in New Zealand.
