Plot: “One Nation Under a Groove,” a profile of Parliament Funkadelic that features animation (including an “Afronaut” character voiced by Eddie Griffin) to explore P-Funk's unique mix of rock and R&B, and its rebellious vibe---tightly controlled by mastermind George Clinton, whose 50-year career links doo-wop and hip-hop. “It was just a party,” says singer Nona Hendryx