The unfinished Gainsborough Pictures film Number 13 was to have been legendary director Alfred Hitchcock’s directorial debut. Unfortunately, production had to stop for an unknown reason, thus resulting in the film being lost.
Dallas King writes about his お気に入り Hitchcock movie, Shadow of a Doubt, as part of The Guardian's ongoing My お気に入り Hitchcock theory. This is also one of my お気に入り Hitchcocks. :)