Yes, I play it 10 dB or more above my normal volume, and it is not too loud, or any louder than my other disks for that matter. I have about a dozen disks out of about 100 that seem to be either hotter or softer than the rest.
lots of Columbia/Tristar discs are like this (the dialnorm is set to ~ -12dB). For instance, on 'The Muppet Movie'... I have to turn my receiver up 12 notches above my reference level to achive the same volume as other discs.
YOu shouldn't raise just your Center Channel level in a film- especially once you've gotten calibrated levels.
Often issues like this one are simply issues of overall encoding levels (and while there are standards for overall encoding levels- some discs vary slightly).
In the case of overall encoding differences, the problem can be solved simply by increasing the overall volume a few clicks to compensate.