Encountering the ruling monarch can sometimes be a little intimidating—even to Queen Elizabeth‘s own grandson. Prince Harry let his sense of humor shine while speaking to a group of hospitality professionals from the Caribbean visiting the queen’s London residence of Buckingham Palace in the upcoming documentary, Queen of the World, which will air in two parts on ITV later this month.

Harry and other members of the royal family are featured in the film about Queen Elizabeth and the Commonwealth–the family of nations linked to the U.K. Even his new bride, Meghan Markle, takes part in “a conversation, a stand-up chat” for Queen of the World. Two members of the royal family, Sophie, Countess of Wessex, and the queen’s daughter Princess Anne have given formal “sit down” interviews, a royal source adds. Meghan, Harry, Prince Charles and Prince William all appear as the show promises to feature “behind-the-scenes moments with the Sovereign and other members of the Royal Family,” a statement from ITV says.

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While ITV has not confirmed the details of Meghan’s role in the film, ITV News’ royal correspondent Chris Ship says she is set to discuss her wedding dress and her early interactions with the Commonwealth. Meghan’s wedding veil celebrated the Commonwealth by having the flowers of each of the 53 countries embroidered on it. The documentary series airs just before Harry and Meghan head to Australia, New Zealand, Fiji and Tonga on their first official tour of Commonwealth nations.

“As the family and world leaders discuss the importance of the Commonwealth to the Queen, the series will document the way in which she passes her knowledge and experience to the younger generations,” the ITV statement adds.