No. It appears to just be a bunch of behind the scenes videos. They appear to be about an hour long if this
YouTube video is accurate at all. It's more of a special feature than a true commentary.
Too bad, although to be honest as much as I really like the game I'd find myself hard pressed to play through the ENTIRE game a third time just to get this information.
Not many games do true "director's commentary." I saw one for that Half Life 2 Tech Demo Lost Coast, and Alan Wake had a pretty cool one where at certain parts of the game a small screen would come on and one of the developers would talk about what was going on. While it was cool, it was slightly annoying because whenever they started you basically had to stop what you were doing to observe the commentary because the game is so engrossing that you can't play while paying attention to separate audio (Not exactly a podcast friendly game.)