King Charles has welcomed stars including Dame Judi Dench, Benedict Cumberbatch and Kate Winslet to Windsor Castle for the premiere of his upcoming documentary.

The showing of Finding Harmony: A King’s Vision, which will be released next month, is the first premiere to take place at the castle.

The film is set to chart the King’s environmental activism over the decades.

Queen Camilla also greeted guests including Sir Kenneth Branagh and Stanley Tucci at the event on Wednesday.