The eponymous Kalashnikov Bible-thumper is Sam Childers (Gerard Butler), a Pennsylvanian backwoodsman, Hell's Angel, drug addict and criminal who finds God and, inspired by a missionary's sermon, goes out to Uganda to build homes for local orphans and kill terrorists. It's rabble-rousing material, and the final credits, in which we see footage of the real Childers strutting his unedifying stuff, suggest that a documentary would have been the appropriate genre.