While I love this film, I understand why others might not. The most compelling points are all delivered via amazing visual imagery. Even better, there are often multiple meanings interwoven into each sequence. If a viewer is just following the dialog, they miss too much content to care about the action.
Without giving away any of the story, let me give a example. After seeing the film with a friend, I was deeply moved by the anguish of a particular scene, and while raving about how it conveyed such strong emotion for such a feminine issue, my friend commented that he hadn't even noticed what the scene was about.
So, okay, maybe the film is too inaccessible to ever be a big draw, but if you are willing to read between the lines, and can enjoy watching double-entendres in motion, then you owe it to yourself to give this a try.