Backwoods rednecks preying on arrogant city boys; John Boorman’s ‘Deliverance’ cast the mould, but ‘Southern Comfort’ is the superior film. Walter Hill’s tense and efficient action thriller sees a squadron of Louisiana National Guardsmen lose their way among the primal forces of the Bayou. Discipline and chain of command are negligible from the outset; on a simple training exercise, a cackling hothead fires a round of blanks at a group of Cajun trappers. The bickering, delusional toy soldiers are quickly out of their depth, hunted by a hidden culture that the American Dream told them nothing about. The pace is sharp and the script is smart. Powers Boothe and Keith Carradine quickly bond as two resourceful survivors caught in a clutch of hysterical machismo. ‘The Blair Witch Project’s debt to ‘Cannibal Holocaust’s faux-documentary style is well known; its gothic roots in Hill’s masterpiece less-so. The enemy is barely seen; it is ultimately the alien terrain of the swamp itself that swallows up the incredulous trespassers.