A few years ago Kim Catrrall was persuaded to disrobe for a version of Titian's 'Diana and Actaeon' as part of a campaign to save the originals from being sold and allowing it to remain on display in the UK
http://en.m.wikipedia.org/wiki/Diana...ctaeon_(Titian)
There was a documentary on the photo shoot done for 'The Culture Show', but I've been unable to track down any vids of it thus far...