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
The contract that set the Beatles on their way to superstardom is to go up for sale for the first time, and could fetch as much as £500,000.
The shortest man ever to have been measured has died aged 75, Guinness World Records has announced.
Britons have stepped forward to offer help to refugees after a photo of a drowned three-year-old boy prompted an outpouring of support.