Warner Bros. Studio Tour London: The Making of Harry Potter is the behind-the-scenes one-way walking tour of the Harry Potter set where the films were made, which opened on 31 March, 2012. The tour features authentic sets, concept art, scale models, costumes and props from the Harry Potter series. The tour is located 20 miles from Central London at Warner Bros. Studios, Leavesden, where the Harry Potter movies were filmed. Tickets will not be available for sale at the attraction, they must be booked online through the official website or via a site such as Brit Movie Tours.