I found it genuinely fascinating in a lot of ways. It goes to unexpected places, but with subtlety and understatement.

And yes - I try not to bash the US as it is a cliche thing to do. Most Americans I know are intelligent, thoughtful people (including your good self), and a strong and prosperous America is in everyone's interests. However, as far as film ratings are concerned, I think your fellow countrymen rather need to sort out their priorities.