It looks like Darren Aronofsky's promised commentary for his ambitious and moving THE FOUNTAIN has been posted online. I have not been able to listen to it yet but I plan to do so soon. I love the ambiguity of the film and hope that he doesn't attempt to over explain it in his track, but either way I am looking forward to hearing his thoughts. The link is over to the right under the heading "The Fountain Commentary"
UPDATE: It looks like the site has exceeded its bandwidth this morning but hopefully it will be back up soon.