DVD sound - out of synch

I bought the Best Buy 3DVD edition and on the first part of the main feature there are definite problems with the sound. In part one the sound gradually seems to get out of synch with the lip movements during interviews. It corrects itself later in the film.

Most notable is in the interview with Roger when he makes a punching noise and the sound is way off. Anyone else notice this or do I have a duff copy?.



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