This list celebrates the greatest American films of all time, as voted for by the British Broadcasting Corporation (BBC). Spanning multiple genres and decades, these 100 films showcase the best of American cinema, from classic black-and-white films to modern blockbusters. From "Citizen Kane
From Wikipedia
The following films have been voted the best in national and international surveys of critics and the public. Some surveys focus on all films, while others focus on a particular genre or country. Voting systems differ, and some surveys suffer from biases such as self-selection or skewed demographics, while others may be susceptible to forms of interference such as vote stacking.