I'm looking for a movie which I think is a Robin Hood one. That I saw when I was a boy of 11 or 12 years old so the beginning of the sixties. What I remember: it was a scene in the woods with two men and a woman. One of them gives her something saying that you can clean with it. In a small lake or river she went into water, gets rid of her clothes and let the "soap" (which probably was not yet called that way) foams. Under the approving gaze of men. As a young man this scene made a big impression. And want to see it once again. Does somebody recognizes it?