Even though nudity has been filmed almost since the invention of cinema, it still seems to shock some people, although not so much in Europe. I saw this fascinating report on French television the other day which gives a good overview of the subject and which does not fear to give full illustration of the subject. The opening sequence covers the current filming of a comic police series set in the near future where global warming and security concerns have caused everyone to go naked all the time. The director points out that the nudity was not at all filmed in a sexual context but just to show the incongruity of such a situation.
Anyway, for anyone who can understand French, the whole report is definitely worth watching.