Zodiac: Directors Cut (2009) question

[gavydizzle]

I had a question, and if I am posting this in the wrong place, my apologies, but here goes:

In the opening scene of Zodiac (on my copy atleast), the entire seen seems to have a layer over it, that distorts the image and gives it a certain un-natural haze. Things don't appear as sharp, and its not nearly as crisp as the rest of the movie (which barring this, is one of my favorite BDs to watch in terms of pq).

I was wondering if anyone else had noticed this, and if there is any reasoning behind it. Or perhaps maybe I have a bad copy?

Thanks!