King Charles has turned Windsor Castle into a very regal setting for a film premiere as he welcomed some of the biggest showbiz stars to his ancient home. The film, made with The King’s Foundation, is a focus on the long standing work of King Charles to protect the natural world. And as the environment was at the heart of this project, King Charles and Queen Camilla made sure their guests walked a green carpet, rather than the traditional red seen at bis showbiz events. Guests were welcomed to a special cinema, set up for one night only in the historic Waterloo Chamber at Windsor Castle. There, they saw the premiere of Finding Harmony – A King’s Vision which sets out Charles III’s personal beliefs about the environment in full detail.