The Harry Potter Tour will open next March at Warner Bros. Studios in Leavesden, Hertfordshire, north of Watford, where the films were made. Tickets are already on sale.
   The tour will last for three hours and visitors can see sets, costumes and props from all eight films.
   Diagon Alley, Hogwarts’ Great Hall, the Gryffindor common room and Dumbledore’s ofice are among the seven sets.
   Warner Bros. UK boss Josh Berger says that visitors will not be disappointed.
   London mayor Boris Johnson likens the Tour to a ‘shrine’ for devotees, and is doubly pleased as his city hosts the 2012 Olympics.
   Leavesden was originally a wartime aerodrome owned by the Ministry of Defence, before Rolls-Royce took over the facility entirely in 1967. Peter Lamont, production designer of the James Bond movie Goldeneye, used the 1 million ft² floor space for his film, leasing the property from Rolls-Royce. The facility was then bought by a Malaysian group with the intent of creating a theme park, before the Harry Potter series began filming there in 2001. Warner announced its plan to purchase the property in 2010.