I couldn't get thruugh the Pirates of the Caribbean commentary track. Was just way too ..umm..fruity.
Actors doing a commentary track as their or another char gets old fast too. I'm thinking of Bruce as Elvis in Bubba Ho-Tep and Jim Carey as Lemony Snicket.
The looped commentary for Dodgeball after they got bored wasn't much of a joke either.
Back to the Future commentary was just an overdubbed discussion from some Uni. Sheesh, how lazy was that.
Detroit Rock City had each of the 4 members from Kiss talking for about 15-20 mins each seperatly. I don't have disk anymore, but one of them sounded like his was recorded over the phone.
Young Frankenstein shows Mel Brooks to have the same selective memory problems as Lucas suffers from. His comments there contradict some of the other features on the disk.
Ones I like for various reasons...? 8) Any Kevin Smith, Boogie Nights, 12 Monkeys, Brazil collection, Stewie Griffin, Fight Club, American Movie, the LotR series, Hoodwinked, Futurama, The Good the Bad and the Ugly, Dude Where's My Car?
One of my favorites are the Robert Rodriguez commentaries on El Mariachi and Desperado. The El Mariachi one should be required viewing for anyone that wants to make a film. His cost cutting went so far as to not wanting to paint one side of a guitar case flat black because the vinyl was torn of it, so he shot it so it wouldnt be shown. Now that's the kind of stuff I want to hear from a commentary.