Machine Gun Preacher is a 2011 action biopic film about Sam Childers, a former gang biker turned preacher and defender of African orphans. The movie was based on Childers' book Another Man's War. It was written by Jason Keller, directed by Marc Forster, and stars Gerard Butler, Michelle Monaghan and Michael Shannon. Wikipedia
Sam Childers: Why don't you fight the evil in this place your way, and let me fight it mine.