AmovieabouttheFirstWorldWarbasedonastagemusicalofthesamename,portrayingthe"GameofWar"andfocusingmainlyonthemembersofonefamily(lastnameSmith)whogoofftowar.Muchoftheactioninthemovierevolvesaroundthewordsofthemarchingsongsofthesoldiers,andmanyscenesportraysomeofthemorefamous(andinfamous)incidentsofthewar,includingtheassassinationofDukeFerdinand,theChristmasmeetingbetweenBritishandGermansoldiersinno-mans-land,andthewipingoutbytheirownsideofaforceofIrishsoldiersnewlyarrivedatthefront,aftersuccessfullycapturingaridgethathadbeencontestedforsometime.