Prince George, Princess Charlotte, and Prince Louis are privy to certain privileges as members of the Royal Family. On Friday, September 26, "Kate took Prince George, Princess Charlotte, and Prince Louis for a spellbinding visit where they met the cast," the outlet reported. Describing the incredible event, a royal source told the Daily Mail, "It was so special, Kate and the children met the young actors and the director on the set. (Image credit: Getty Images)A source also revealed that Princess Beatrice and Princess Eugenie's children visited the set, too. Earlier this week, royal biographer Christopher Andersen opened up about George, Charlotte, and Louis's upbringing in an interview with Harper's BAZAAR .