Myself, and most of those who have been following you Movies of the Day in the almost exactly ten (wow!) years since you've been doing them, have been greatly anticipating your covering of this movie. A sign of a truly great movie is not just that it can be open to several different readings or interpretations, but that subsequent viewings allow fresh readings as well. I can think of only a few other SF movies (Forbidden Planet, Solaris, Blade Runner, Dark City and more recently, Primer) which are also sufficiently cerebral to allow for such intellectual openness.