Well just head on over to Darrenaronofsky.com and listen to the audio commentary.
Apparently, the film's director, Darren Aronofsky, took it upon himself to create this audio track. So all one needs to do is pop the the DVD into their player, press play on both their computer and the DVD and they'll be able to listen to Aronofsky muse about this space-aged opus as their DVD plays.
The Fountain hits DVD, HD DVD and Blu-ray on October 2nd.
Dont't forget to also check out: The Fountain