The project will form part of the King’s greatest legacy.

Fans of the Royal Family have been given a first look at a new documentary about King Charles and what he has achieved with The King’s Foundation over the last 35 years. Finding Harmony: A King’s Vision will be released by Amazon Prime on February 6 and has been narrated by Academy Award-winning actress Kate Winslet.

The new two-minute trailer begins with the King watching footage of himself from 2020 when he spoke at the World Economic Forum. He can be heard to say: “I have dedicated much of my life to the restoration of harmony between humanity, Nature and the environment.”

It is understood that filming for the documentary began in early 2025 at Dumfries House in Ayrshire, Scotland and has subsequently taken place over four continents in a major effort to highlight harmony projects across the globe.

With the King’s lifelong commitment to the philosophy of harmony at its heart, the programme will form a key part of the monarch’s legacy as he encourages viewers to protect the planet and create a more sustainable future.

The programme will showcase the King’s “harmony” philosophy in action through the numerous achievements of the King’s Foundation, His Majesty’s nature and sustainability charity.

The goal of the documentary is to showcase the importance of harmony and spread its message to a new audience. It will also serve to highlight the desperate action that is required to help protect the planet.

Lending her voice to the project, Ms Winslet – who became an ambassador for the King’s Foundation last year – said: “It is both a pleasure and a privilege to be a part of this film, which is a fascinating insight into The King’s work as an environmentalist.”

King Charles has joined forces with Kate Winslet (Image: Getty)

She added: “I share His Majesty’s passion for protecting our planet and building sustainable communities, so it’s been really rewarding to work with The King’s Foundation on this exciting project. I know audiences will learn, laugh and feel inspired by what’s featured in the film, and I hope the impact of Harmony will be felt in years to come.”

The King’s Foundation was launched by the King in 1990 when he was still the Prince of Wales. At its inception, he aimed to bring about the change he wanted to see in the world in a range of sectors, such as environmental activism, fashion and architecture.