When a reigning monarch takes center stage in a documentary, it’s usually about history, tradition, or palace intrigue. Finding Harmony: A King’s Vision flips that expectation. Released globally on Prime Video on February 6, 2026, the film dives into King Charles III’s lifelong environmental philosophy—his belief that humanity must live in balance with nature, not apart from it. Narrated by Oscar-winner Kate Winslet, the documentary is both a personal chronicle and a global call to action.

What the documentary covers

• Charles as an early environmentalist: Long before “climate change” became a household phrase, Charles was advocating organic farming, biodiversity protection, and sustainable communities. He often faced skepticism, but the film shows how persistence turned him into a pioneer.
• The philosophy of Harmony: Central to the story is his idea that human wellbeing is inseparable from the health of the planet.
• The King’s Foundation: Based at Dumfries House in Scotland, the foundation is highlighted as a living model of sustainability—covering food production, urban planning, textiles, and traditional skills.
• Global scope: Shot across four continents, the film spans 75 years of archival footage, weaving together Charles’s personal journey with worldwide environmental challenges.

Who’s behind it

• Director: Nicolas Brown, known for Human Planet and Nature.
• Production: PASSION Planet, in collaboration with The King’s Foundation and Amazon MGM Studios.
• Narrator: Kate Winslet, who became an ambassador for The King’s Foundation in 2025. Her voice lends warmth and urgency to the story, and she’s openly aligned with Charles’s environmental mission.

How to watch

• Streaming platform: Available exclusively on Prime Video.
• Membership details:
  • Included with an Amazon Prime subscription ($14.99/month or $139/year).
  • Discounts available for students and qualifying government assistance recipients.
  • New viewers can start with a 30-day free trial.

Why it matters

This isn’t just a royal portrait—it’s a reminder that environmentalism has been a decades-long fight, often led by voices dismissed as “ahead of their time.” The documentary positions King Charles III not as a distant figurehead but as someone whose ideas are finally catching up with the urgency of the present moment. Winslet herself summed it up: audiences will “learn, laugh, and feel inspired,” and the hope is that Harmony becomes more than a philosophy—it becomes practice.