Apparently, Scorsese is really into Barry Lyndon.
There is a very stylized and emotionally remote quality to the film that is off-putting to most people. One of the keys to the film is Kubrick starts a lot of shots in close up, then pulls back for a long shot, so the effect is like a landscape painting come to life. The lighting, the costumes, the mise en scene is of the highest quality. The cinematography alone makes this a landmark film, as it influenced pretty much everything that came afterwards (Days of Heaven, most significantly, which with its golden hour cinematography has been endlessly influential).