In the late 1980's there was a film about Nazi Germany either in Italian or French.  Unfortunally I saw in Japan on Japanese TV with Japanese sub-titles.  I don't remember much about it except for the erotic scene where a young boy is at the dinner table and next to him was an older lady where he pursues to remove her underpants without causing any attention at the dinner table.   Can anyone help to the title of this movie.  