"Nobody is a stranger to the conflicting feeling of eagerly sitting down to watch what has been described to them as a great film, only to realize from the opening scenes that the two hours and change left to the movie's runtime is going to be a battle of endurance. Another analogous film going experience, and we're all guilty of it, is watching a supposed great film, and it earns your respect, there are even parts of it that you thoroughly enjoy, but that you sheepishly admit, if not to your friends then to your heart of hearts, that you won't be watching it again in a foreseeable future that includes your lifetime.
No list is perfect. Neither is this one. Some of your favorite films may appear on it, or others that you don't consider so difficult, yet to the wider but still intelligent and passionate film-going audience, the following 10 films will at least challenge their taste, expectations, and intellect, sometimes simultaneously, making them unanimously hard to love."