Every decade, Sight & Sound asks an international group of film professionals to vote for their greatest film of all time. Critics are asked to provide a top ten list; in 1992, directors were invited to participate in a separate poll. The individual results are eclectic; in the 2002 poll, 885 different films received at least one mention from one voter. Even the top-of-the-list consensus has its limits. In 2002, both the critics and the directors selected Stanley Kubrick films in their top ten; however, the critics chose 2001: A Space Odyssey, while the directors preferred Dr. Strangelove. The Sight & Sound accolade has come to be regarded as one of the most important of the "greatest ever film" polls. Roger Ebert described it as "by far the most respected of the countless polls of great movies--the only one most serious movie people take seriously."^[1] The first poll, in 1952, was topped by Bicycle Thieves. The five subsequent polls (1962–2002) have been won by Citizen Kane (which finished 13th in 1952).^[2] Just two films have appeared in all six of the magazine's six decennial polls: The Battleship Potemkin and La Règle du jeu (The Rules of the Game).