Mel Gibson in The Road Warrior, the second Mad Max movie (1981). (Courtesy Warner Bros.)OUR IMAGE OF MAX ROCKATANSKY and his adventures is dominated by sojourns through the Australian outback—the Wasteland—as he is chased by S&M enthusiasts with names like Lord Humungus or forced to do combat in the Thunderdome or serve as a “blood bag” for a cancer-riddled War Boy blasting along the sandy flats in pursuit of a war rig filled with sex slaves.But…