Harry Potter studio tour - Telegraph For fans of the world's best-loved young magician, a spell-binding new attraction opens its doors this weekend. The Warner Bros. Studio Tour London - The Making of Harry Potter, offers visitors the opportunity to peek behind-the-scenes and experience the technical wizadry that has gone into creating the most successful film series of all time. The three-hour walking tour through the Warner Bros. studios takes visitors inside the famous film sets, model making, props and animation workshops. Picture: Warner Bros. Studios