Prospect (DIR. Chris Caldwell, Zeek Earl) First, we lived through “mumblecore”.  Then, we were subjected to “mumblegore”.  Now, it seems like the next logical step is to “mumblego” where no man has gone before.  Case in point: Chris Caldwell and Zeek Earl’s exercise in furious navel-gazing, Prospect, a film so enamored by its own cleverness that it manages to make its modest runtime seem endless.  A film whose total lack of direction in favour of world-building…