By | June 04 2012 5:11 PM

Few are familiar with the Cristero War that took place from 1926 to 1929 in Mexico. The brutal warfare began after persecuted Catholics refused to stop practicing their religion. An astounding 90,000 Mexicans were killed during the conflict -- including priests, nuns, and children. The film For Greater Glory, released Friday, shines a spotlight on this little-known but horrific piece of history.