Composers commentaries are always very interesting. I've enjoyed Trevor Rabin's "The 6th Day", although I'm not really a fan of his music, but he tells a lot about his way of composing and working in the soundtrack business, which is very informative. Also Marco Beltrami's commentaries for "Hellboy" and "I Robot" are worth listening. I hope when the new Omen comes to DVD, he will do another commentary, and tells us a little bit more about the time when he studied under Jerry Goldsmith in the early 90's.
