While there is no agreement upon the greatest film, many publications and organizations have tried to roman blinds determine the films considered the greatest ever. The films mentioned in this article have all been mentioned in a notable survey — be it a popular poll or critics' poll. Many of these sources focus on American films or were polls of English-speaking film goers, but those considered the greatest within their respective countries are also included here.
None of these citations should replacement windows be viewed as scientific measures of the film-watching world. All the surveys are flawed in one way or another. They are often influenced by vote stacking or they survey a population with skewed demographics. Internet-based surveys have a self-selecting audience of unknown participants. The methodology of some surveys may be questionable. window hardware Sometimes (as in the case of the American Film Institute) voters were asked to select films from a limited list of entries.