Scene from a movie I can't remember title (setting, fashion)

[Eduardow]

Years ago I saw a movie of which I remember little other than a scene that stayed all these years with me: there are very well dressed aristocratic people dancing in a palace like setting, old fashion dancing with fancy dresses. All of the sudden we see the same people naked. The shock is to see people in a sarcastic way without their fancy clothing and in their absurd nudity. Nothing else changes, it is like the spectator was given x-ray vision. Does anyone remember this movie? Thanks

[jiminnm]

Debbie Does Devonshire