King Charles laughs as Archbishop of Canterbury forgets words in Coronation rehearsal

Behind-the-scenes footage from King Charles III's Coronation rehearsals shows the monarch laughing as the Archbishop of Canterbury trips up over his words.

Charles III: The Coronation Year is a new documentary to be released by the BBC on Boxing Day, following Charles and Queen Camilla's preparations for the historic day in May.

It captured a moment between the soon-to-be-crowned King and Justin Welby, who were practising what the Archbishop would say as Charles sat on St Edward's Chair.

"I have a memory that is probably about as good as our Spaniel's. In other words, zero," Mr Welby said.