I haven's seen the movie, but I think this is a case of history repeating itself. http://www.oldmagazinearticles.com/pdf/Talkie_Town_USA.pdf (apologies for the low quality of the scan): "Only last winter an extensive poll of film fans showed them relatively unsatisfied with sound pictures and desirous of once more seeing silent pictures." We also have Aldous Huxley ( http://www.digitalhistory.uh.edu/historyonline/sou…
48 FPS is probably analogous to 3D, rather than talkies. When the talkies came along there was a rapid transition: the big five studios were exclusively shooting talkies about two years after the Jazz Singer was released. Whereas 3D is more prevalent today, but some film-makers choose not to use it. There is not quite the same demand by the audience.
I mentioned this earlier, but I'd love to see a screening of The Hobbit with 24fps for dialog and 48fps for action.