March of the Penguins

March of the Penguins is the highest-grossing nature documentary of the 2000s, earning $127 million worldwide while winning the Academy Award for Best Documentary Feature. Luc Jacquet's 2015 film tracked emperor penguins' brutal Antarctic breeding cycle, narrated by Morgan Freeman, introducing polar ecology to 30 million viewers years before climate change dominated public discourse. It outperforms #8 *The Cove* (which made $2.4 million) by over 50 times in box office, proving nature docs can achieve mainstream blockbuster status while fostering crucial environmental awareness.