Harry Potter still casts spell for fans 20 years on

By Emily G Roe and Neil HallLONDON (Reuters) - Dressed in a long black gown and holding a wand, George Massingham is keen for everyone to know he is a Harry Potter super fan.If he isn't doing Professor Severus Snape, the mysterious potions master at Hogwarts School, the 27-year-old likes to dress in some other costume relating to J.K. Rowling’s fantastical world of witches and wizards.Massingham said of his colleagues: "They don't react as much now as they used to.