This is the red taffeta dress that Georgiana Cavendash (Keira Knightley), the Duchess of Devonshire, wears to a party in the recent movie, The Duchess. The costume designer (I forget his name, Michael something?) calls it the "drunken dress".
This recolour is by me, and the wonderful mesh is by Liana, here:
http://www.lianasims2.net/preview.php?cat=meshes&id=76Enjoy!