I wonder how it was presented in the film? Probably rather heroically with despotic guards etc - a flip side of the allied nations' POW films and an earlier thread on the camp: http://ww2chat.com/forums/axis-pows/303-cowra-pow-camp-breakout-august-1944-a.html
The committed suicide for the emperor.......what else! Those murderous Australians, they gave those two men a medal for shooting prisoners. blah, blah, blah.