I don't think we are living through a golden age of film right now. The simple reason to my mind is that a lot of the writing talent is now directed towards television not film. So you have some very good long running tv series but a lack of great films. There just aren't enough good writers working in film now. Writers were never treated that well in the industry and tv seems to treat them better. For all movies have become more expensive and high concept and full of showy auteur directors, by and large the basis for a good film is a good script and there just aren't enough around.
Yes, 'The Wire', 'The Shield', 'The Sopranos', 'Boardwalk Empire', 'Battlestar Galactica', 'Game of Thrones', 'Breaking Bad'....you could go on and on but these TV shows are superior to much of the stuff from Hollywood.
HBO give projects time to develop. There is also an unhealthy obsession with superheroes in US movies at present. Still there are gems like Looper, Argo, Another Earth, 500 days of Summer and most movies by the Coen Bros or the occasional Tarantino.