Hi Dom,
yes, Grayson speaks French throughout the movie. She already knew French but I'm sure she had a coach for her dialogue. She did talk about the experience of working on the movie a couple of times--from what I can determine, the most taxing part of it was being surrounded by a cast and crew all talking a foreign language nonstop ("It was HELL, honey!" she once exclaimed, and I think she was only half joking). I believe this was the period of Grayson's notorious tenancy of Gore Vidal's "unheated flat" in Paris, when she described herself "hopping like a frog across the lily-pads" of cushions strewn over the floor to avoid bare feet on cold boards first thing in the morning. Gore Vidal was a friend of Tennessee Williams, and GH had made friends with Williams during the Iguana shoot in Mexico.
Also, Grayson's casting on DS apparently happened through Bob Costello. There was no audition--her agent phoned and she went over that afternoon for the script run-through of her first episode. Once she was on board, she managed to charm both DC *and* his wife--no mean feat! That's our gal!
Poor JC--I have trampled upon your most tender, maidenly feelings! Where are the Simple Joys of Maidenhood??? I'll have to pop something Briscoelicious and brawny in the post to you ASAP to soothe your understandably jangled nerves!
In conciliation, Steve