Without permits, caution or anything to prove except everything, director George Miller shot “Mad Max” in 1977 on some beautifully forlorn stretches of Australian road with an ensemble of eager maniacs activating, and hyperactivating, a tale of a desolate near-future. At one point, a very young Mel Gibson as Max Rockatansky, the road warrior-lawman on the edge of insanity, mourns the killing of his boss and comrade. “He was so full of living, you know?” he says, fighting back tears in the super-healthy guy way.