THE Prince of Wales is in “advanced negotiations” with Hollywood film producers to make a movie in which he will tell us how to lead our lives.

The prince, once an object of fun for talking to his plants, is being wooed to make a documentary film similar to Al Gore’s An Inconvenient Truth.

The former US vice-president’s plea to save the planet was a surprise box-office success, making the idea of a royal “follow-up” a realistic proposition.

It invites the intriguing possibility of Charles and the Duchess of Cornwall attending parties alongside the likes of Robert Redford and Scarlett Johansson at the Sundance film festival in America.

Insiders at Clarence House insist the idea for the film, which has a working title of The Harmony Project in palace circles, came from Charles himself.

Those who consider him a meddler for his campaigns against genetically modified food, modern architecture, carbon-copy high streets and the British education system may propose the alternative title of The Inconvenient Prince.

The documentary will explore Charles’s concern that there is a worrying imbalance in man’s relationship with nature. Like Gore’s film, it will warn that “we are fast running out of time”.

Charles is in discussions with Stuart Sender, a director and producer whose film Prisoner of Paradise was nominated for an Oscar in 2003. It told the story of a Jewish cabaret star who was forced to make propaganda films for the Nazis before being sent to the gas chambers at Auschwitz.

Sender and his wife Julia Bergman, one of the producers of the 1997 film GI Jane starring Demi Moore, run Balcony Films, which claims to make “mainstream popular multi-platform media that inspires people to take action”. They were in London last week to look at locations and meet the prince.

Among Sender’s most recent projects was a film encouraging women to vote. It included contributions from Angie Harmon, the Texas-born actress and former model, and Felicity Huffman, who plays the harassed mother of four in Desperate Housewives.

The Harmony Project is likely to give a more challenging perspective to the problems facing the world than blockbusters such as Flood, which showed the arena, formerly the Millennium Dome, engulfed by the O2 Thames.

Charles wants to find a platform to preach his own message that, in the search for technological advancement, mankind has lost touch with the “wisdom of the past”.

He is likely to be filmed at his country home of Highgrove, Gloucestershire, where he enjoys watching the bees.

Initial ideas for the script, based on a speech Charles gave in Liverpool earlier this year, have him praising bees for the way they work together to produce a “harmonic whole”.

The backdrop is likely to switch to a high street as the prince compares the harmony of the beehive with what he sees as a convenience-based, throw-away consumerist society.

Charles is helping to set up people to be interviewed on camera for the film. They include Vandana Shiva, 54, an Indian physicist and environmental activist. Charles contacted her this summer to ask if she would like to appear in his film and later sent her an e-mail in which he confirmed Sender’s involvement in the project.

Her office said they expected filming to begin in the next eight weeks in the Punjab.

The prince feels the film will help put the record straight. It should be ready in time for his 60th birthday in November next year and will be seen by many as his personal manifesto.

But some of his closest advisers are worried it might still send out the wrong message. One palace insider said: “His advisers are worried that it will accentuate the quirky side of him. You could argue that it displays a certain self-indulgence.”

But a source close to Charles said: “He regards himself as the founding father of the harmony principle and the need for self-growth and he is grateful for the opportunity that these Hollywood producers are giving him to share his views with a wider audience.”

Clarence House said: “We are in discussion on various documentary projects. We are seriously considering three projects, one of which is the US-based documentary.”

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