Lev Grossman and Jumana Farouky have written an interesting article on Daniel Radcliffe and his Harry Potter co-stars for Time.
"Growing Up Potter" relies primarily on interviews with Radcliffe and the director of Goblet of Fire, Mike Newell, and the article conveys some idea of what it must be like on the Harry Potter set. As Grossman and Farouky explain, "The Harry Potter set is an exclusive microcosm, one that comes with its own delights and its own dangers--in other words, it's not all that different from Hogwarts."