Am trying to find title and any details about a film I saw many years ago,everyone I ask about it remembers the last scene but none can remember any more than that about it. In the closing scene one man is shot by another and he falls back against the sails of a windmill and is caught on it and taken round and round the windmill, I think it was a black and white film.

That sounds like a scene from a Hitchcock film, though I don't recall which one. Was one of the men Jimmy Stewart?