In a new behind-the-scenes documentary titled “Charles III – The Coronation Year,” King Charles shares a light-hearted moment with his son, Prince William, as they prepare for the elaborate coronation ceremony.

The film, set to be released by the BBC, offers a unique glimpse into the royal family’s nervous anticipation leading up to the momentous event.

During the rehearsals captured in the documentary, Prince William and King Charles share a rare public display of affection.

The Prince of Wales can be seen practicing the ceremonial act of handing King Charles his stole royal, a symbolic cloth band representing the sacred nature of kingship.

In a playful exchange, Prince William jokes about the fiddly catch of the stole royal, teasing that it might not go in smoothly on the day.

King Charles responds with humor, remarking that his son doesn’t have sausage fingers like him.

Their laughter fills the room, creating a heartwarming moment that will undoubtedly delight royal fans.

Another lighthearted moment from the rehearsals involves Prince William practicing his pledge of allegiance to his father.

The Prince of Wales playfully suggests placing a kiss on King Charles’ cheek, tickling his father’s face, and claiming that the left cheek is better.

Their affectionate banter showcases the close bond between father and son.

The documentary, which is set to air on Boxing Day, promises to offer viewers an exclusive look at previously unseen behind-the-scenes footage and interviews with key officials, family members, and senior royals.

Spanning 90 minutes, the film will highlight significant events from King Charles’ first year on the throne following the passing of his mother, Queen Elizabeth II, in September 2022.

Throughout the documentary, viewers will witness rare moments of reflection and emotion from the king.

Cameras capture King Charles and Queen Camilla as they observe their three crowns being reworked to fit them, symbolizing the weight of their new roles.

Additionally, the royal couple witnesses the meticulous embroidery of their ceremonial robes in preparation for the monumental event.

In one amusing highlight, the Archbishop of Canterbury, Justin Welby, is seen struggling with his lines during a rehearsal.

In an interview, Welby candidly admits to having a memory comparable to that of a Spaniel, in other words, practically nonexistent.

King Charles, finding humor in the situation, chuckles as the Archbishop seeks reference from his notes.