The studio you refer to is very interesting, @ladyrebecca, as it tries to identify those films that have influenced cinema the most (I would add sometimes as art and other times as industry, I mean by selection). Although it is a criterion of a certain objectivity, it will always be inconclusive because the one hundred continues to develop and, of course, also its influences and interactions. In the ones included in the list, there are several that also constitute my favourites as influential works: Metropolis, The battleship Potemkin, Nosferatu, Casablanca, Citizen Kane, Psycho, 2001: space odyssey. Thanks for your post.