Yep, another disc encoded at PC levels. I LOL’d a bit when I saw in the Blu-ray.com thread that Shout fixed the black bars being grey in another of their releases, but not the black being grey in the film itself.
Kinda figured something like this would happen, Shout has never had very good QA.
Hopefully a better quality release comes out from someone else, maybe when a Japanese release finally comes out.