LONDON: Wave a wand and a ladle across the room turns in a cauldron. Move your hand and a knife starts to chop.

Warner Brothers aims to recreate the magic of the Harry Potter movies with a major tour at its newly renovated Leavesden Studios on the outskirts of London, with the attraction due to open next spring. The Hollywood studio behind the record-breaking franchise has relocated the original Great Hall at Hogwarts School of Witchcraft and Wizardry, and visitors will be treated to a surprise entrance into the towering set.

There they can admire the attention to detail in which the production crews on the eight movies took great pride -- from the elaborate "stonework" of the outer walls to graffiti carved into wooden tables by students.

There will be no floating candles -- that particular piece of magic was conjured by computers, but many of the characters, props, costumes and settings were real-life.

Among the highlights will be the giant spider Aragog suspended from the ceiling, and fans will be able to pose for photographs in one of the "flying" Ford Anglia cars used in "Harry Potter and the Chamber of Secrets". The sharptoothed "The Monster Book of Monsters" has been dusted off, and Buckbeak the "Hippogriff " is getting a meticulous makeover for when the doors of the attraction open.

The studios and neighbouring tour space are currently little more than a giant building site, with only a few of the main attractions in place including the shell of the great hall. Journalists were shown around the site recently as Warner cranked up the publicity ahead of tickets for " Warner Bros. Studio Tour London -- The Making of Harry Potter" going on sale on October 13. They will cost £21 per child, £28 per adult and £83 for a family of four, and up to 5,000 visitors are expected to be able to take the threehour tour each day.

The venture underlines how the Potter phenomenon looks set to go on generating revenue long after the July release of the eighth and final film. John Richardson, who won an Oscar for his work on the 1986 movie "Aliens" and was special effects supervisor on the Potter films, demonstrated the wand and hand "tricks" and a number of other devices he developed.

"There are so many kids and so many adults who have grown up with Harry Potter, it's an opportunity for them to be close to all things Harry Potter and at the same time give the public the chance to see what goes into making a movie," he said.