Harry Potter and the Chamber of Secrets that time) the seventh highest-grossing film ever and received generally favourable reviews. Video games loosely based on "Harry Potter and the Chamber of Secrets" were also released for several platforms, and most obtained favourable reviews. On Harry Potter's twelfth birthday, the Dursley family—Harry's uncle Vernon, aunt Petunia, and cousin Dudley—hold a dinner party for a potential client of Vernon's drill-manufacturing company. Harry is not invited, but is content to spend the evening quietly in his bedroom, although he is confused why his school friends have not sent cards or presents. However, when he goes to his room, a house-elf named
Harry Potter and the Philosopher's Stone social theory". Stephen Brown noted that the early "Harry Potter" books, especially "Harry Potter and the Philosopher's Stone", were a runaway success despite inadequate and poorly organised marketing. Brown advised marketing executives to be less preoccupied with rigorous statistical analyses and the "analysis, planning, implementation, and control" model of management. Instead he recommended that they should treat the stories as "a marketing masterclass", full of enticing products and brand names. For example, a real-world analogue of Bertie Bott's Every Flavour Beans was introduced under licence in 2000 by toymaker Hasbro. Harry Potter and the Philosopher's Stone Harry Potter and the