As far as my knowledge goes, United Kingdom is Great Britain. So, here are...
the Movie Ratings: This should help.
United States: Unrated GREAT BRITAIN: Unreleased
Ireland: Unreleased
Canada: PG
Quebec: G
Japan: G
Germany: 6+
Australia: Unreleased
New Zealand: Unreleased
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See my unreleased in Great Britain is Bold? That's because it's making a point.
Yeah, I don't live in the UK. The Member Card is suppose to be available via Wi-Fi. However, that's only for Platinum, a version I don't have. (Or never bothered to obtain.)