Yes there is! Roger Avary is a HUGE George Romero fan. His commentary track is featured in in the Divimax DVD series, a 2003 Anchorbay rendition (The one with the velcro), the commentary is very fun. I like how he always speaks in a condescending way whenever Howard Sherman’s character comes on (Bub). Avary: “Oh, it’s such a great performance”. He also speculates that John and Billy are G-A-Y; they’ve decorated their own home “The Ritz” and they live together and are secluded from the rest – i’m sure they’re just really close friends, like J.D. and Turk in [SCRUBS], those two are quite the pair. 
