Hilarious commentary for a hilarious movie can be found on Harold and Kumar Go to White Castle: commentary by "Extreme Punk #1" (or is it #2?) There are 3 or 4 different commentaries on the DVD, too.
Those of you who didn't see this movie because the previews were terrible, I'll agree with you there but it really is worth quite a few laughs.
Originally posted by Myth
I love Keven Smith's apology to DVDs at the beginning of the commentary for Jay & Silent-Bob Strike Back.
I believe the DVD commentary you're thinking of is from "Chasing Amy", because if you select the "Kevin Smith Intro" feature he apologizes for his comment of "F*ck DVD!" But as far as my favorites go, I'll go with:
-Sam Raimi and Bruce Campbell on "Evil Dead 2
-Sherri Moon Zombie, Sid Haig, and Bill Moseley for "The Devil's Rejects"
-Kevin Smith and the miscellaneous cast members for all of Smith's movies.
-Trey Parker's drunken commentary for "Orgazmo"