The final hour of Black Panther really nails it. It delivers the same kind of junkie fix that Marvel fans are accustomed to paying for, but it’s escapism fused with social vision and progressive identity politics — African pride, honor, heart, nativism, community. The last hour saves the day, but the first 75 is mainly about set-up and diversion — hidden Wakanda, vibranium, action detours (including a mad car-chase scramble in South Korea) but mostly set in a kind of tribal, primal heaven-on-earth.