“Gunner” (** out of four) was a half-cocked action thriller about a world-weary gunfighter (Luke Hemsworth) who is forced back into action to save his 2 sons (Connor DeWolfe and Grant Feely) from a ruthless drug gang (led by Morgan Freeman and Mykel Shannon Jenkins) leading to all-out war. Utterly derivative action thriller off the assembly line but features enough firepower and violent action to make it watchable. Hemsworth is laughably stoic and Freeman is wasted but Jenkins is strong as the main villain.