Watch the movie trailer here:
http://www.fandango.com/movie-trailer/forgreaterglory-trailer/152952/2213421435
And here are interviews of the real Cristeros fighters much later when they are old and remember their days in the service of God.
http://es.gloria.tv/
Their battle cry was "Viva Cristo Rey", Long Live Christ the King
Here is the story by wikipedia https://en.wikipedia.org/wiki/Cristero_War
Here is the battle hymn of the Cristeros
- The Virgin Mary is protector and defender against that we fear
- She will vanquish demons with a cry of "Long live Christ King!" (x2)
- Soldiers of Christ, let us follow this flag, for its cross points to the army of God
- Let us follow the flag and declare, "Long live Christ King!"