The Duke and Duchess of Cambridge and Prince Harry will get the chance to view props, costumes and models from the Harry Potter film series today.
Their Royal Highnesses will undertake a tour of Warner Bros. Studio Tour London - The Making of Harry Potter, where they will attend a wand lesson in The Gryffindor Common Room, and a special effects demonstration on Diagon Alley.
Today will mark the official opening of the studios in Leavesden, where Catherine, William and Harry will be joined by 500 adults and children.
More top news
Hollywood film directors are being asked by the US government to help combat the allure of the so-called Islamic state on social media.
A cross-party group of politicians have teamed up to launch a campaign to "take a stand" against online abuse.
Months of messages contradict the public claims of doctors during the dispute and reveal pay was central to their row with the Government.