Contribution #190812-233843-245000 added the title Suspense Story: Nat'l Press Club Hears Hitchcock (1963) a newsreel short on Sir Alfred Hitchcock (who just happens to be 120 today) giving a speech in National Press Club. Hitchcock's credit was declined with reason given as "Unable to verify.", despite, well... Firstly there is an Internet Archive screener attached as an external link. Secondly there is not one, but two approved images from the title which feature Hitchcock. He is even explicitly mentioned and linked in the plot outline as he is, after all, a main focus of the short!