She looks really different there.In one scene, she and another actress were riding a rather large horse together, young Susannah in front. She was, as was the custom at the time, riding sidesaddle, and doing a very good job of controlling said horse. I was quite impressed by her horsemanship (horsepersonship?).
However, I knew that there would be no way that I could put 'Susannah York' 'sidesaddle' and 'large horse' into a single sentence and not have it sound slightly unseemly.
And now, Susannah York's ass: