China, Hong Kong, Japan, Korea, Thailand, etc.
Hanging by a Thread? No, Arrow confirmed it's going to be a different disc for US and UK. They did the region code thing with the Seijun Suzuki set that featured "animal cruelty" (region B player plays a censored version, region A player uncensored) but they can't publish "child porn" in the UK with the excuse of it being region coded. They'd probably be in prison for that.