Perpetual Planet: Heroes of the Oceans [814196] Released: 2021-04-22 Revenue: $0 Budget: $0 Profit: $0 Runtime: 44 mins Popularity: 0.8134 Vote Average: 7.4 Vote Count: 5 Overview: Oceanographer Sylvia Earle and a cast of marine scientists tell the story of the incredible work being done to protect our oceans fragile ecosystem. Cast [8] Sylvia EarleSelf Angelique PouponneauSelf Brad NormanSelf Emma CampSelf Ghislain BardoutSelf Kerstin ForsbergSelf Michel AndréSelf Vreni HäussermannSelf Trailers Perpetual Planet: Heroes of the Oceans | Official Trailer | National Geographic UK