I recall a film, in which there was an Italian actress. She was wearing a white dress, white-rimmed -plastic sunglasses with black lenses, & may have been using a cigarette holder.
Well she’s not Italian, but Audrey Hepburn was wearing the exact white outfit you mention, complete with white-rimmed sunglasses and cigarette holder, in the opening scenes of the movie Charade. (I know it’s a long shot, but hey, you asked for other ideas).
THIS IS NOT WORK-SAFE! DO NOT LOOK AT WORK! THIS IS NOT WORK-SAFE! DO NOT LOOK AT WORK! THIS IS NOT WORK-SAFE! DO NOT LOOK AT WORK!
The first person I thought of was Elsa Martinelli. Since it’s not work-safe, I made it unclickable. You’ll have to C&P the url, removing the embedded spaces in “http” and the word “celebs”.
On the cartoon is a big-busted, big nosed woman talking about meatballs. Sophia Loren was, IS, well endowned - both with her honker and bra-size-wise - and a good cook. [she has written several cook books]
Is the picture you have in mind anything like this?
[7th row, first pic on the left]
As to the movie… There aren’t a whole lot English language movies with Loren in those days. Houseboat? The Black Orchid? That kind of woman?