The French BD doesn't seem to suffer the same overzealous noise reduction that all but destroys the Anchor Bay and Arrow versions. It isn't stretched, either, but rather the Anchor Bay release is squashed to 1.85:1.
If you take a look at the comparison here, there's some serious clipping going on in the Scream version:
http://www.dvdbeaver.com/film2/DVDReviews50/day_of_the_dead_blu-ray.htm
I've tried ordering the French BD before, but Amazon.fr won't ship to my destination.