I thought that Jensen and Jared's thoughts on the body double were amusing, though I suppose someone wandering around pretending to be you wearing a closed-eye mask of your face would rather strange. The behind-the-camera people made better comments, though.

All of the LotR commentaries are good, whether it's the hobbits or PJ or the set designers.

SGA cast is good, except JF, who doesn't seem to have any clue about what he's doing in them.