As well as a must-see for Harry Potter fans, the Dark Arts exhibit becomes part of the Studio Tour's monument to filmmaking in Britain. "All the departments are given the chance to exhibit what they do," says head propmaker Pierre Bohanna. "The tour is a museum to those people. Normally our work just ends up in the bin. It's filmed, it's done its job and then it's not needed any more. This is the ultimate compliment." Warner Bros Studio Tour London – The Making of Harry Potter has opened the first, new permanent feature devoted to the Dark Arts, with two weeks of extra Dark Arts activities (included in the price) from October 17 to November 3.Picture: John Lawrence/The Telegraph

Credit : John Lawrence/The Telegraph