I have the UK Blu-rays. But I believe it is from the same master. Picture quality was okay.. there was just too much grain. Plus the SQ was average. Special features as well were only in SD which is such a disappointment.. they could have made a decent transfer with awesome PQ and AQ (at least for the first movie). But this is Scream, not Star Wars.
I wanted to purchase the US Blu-rays just for the bundled documentaries but since the BDs of the movies that came with is still the same, it won't make much sense to double dip.