Do you think they like this Film in North Korea?

Not strictly true. There is an underground organisation in South Korea who, at great personal risk, smuggle and launch thousands of USB drives over into the North, containing news, videos and audio material. Most of course get picked up by the regime, but enough make it through to be worthwhile. The data is passed around and copied. As you can imagine, the consequences of being caught in possession of such material would be fatal. Black marketeers also employ similar and even more ingenious tactics to bring movies across, for a price. USB drives are so small that they can be disguised as anything.

NK, like the rest of the world, has already has Battle Royale 2.

Only Americans would remake an entire movie just because the populace has difficulties with reading subtitles...

I'm not an expert, but as well as the underground smuggling from South Korea already mentioned, I would have thought that the fairly substantial release of the THG movies in China would have pretty much ensured at least some covert availability of them in North Korea.

TBH, I'm still a little surprised at the release of THG in China - particularly the Mockingjay films, given the Mockingjay Movement in Thailand and the slightly less-publicized Mockingjay protests in Hong Kong...

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"So I've got bullets, but no gun. That's quite Zen."