I thought this bit was interesting: What the hell is it? Contrary to those examples, the same thing could be said about a rather successful movie, Ghost. That particular story hit upon so many different types of genres: paranormal, romance, murder mystery, fantasy, comedy - yet it appealed to a wide audience. I don't recall specifically, but how was that film marketed? It seems to me it would be beneficial to market to each of those segments individually - at least to some extent - because now you're tapping into any number of markets. It probably helped that the Righteous Brothers song "Unchained Melody" was a huge success, perhaps bringing in a nostalgic audience as well.

The same can be said about many great films, mostly all the ones I admire most.