I don’t know what other people don’t know.  I can’t cite empirical data regarding the knowledge or ignorance of a potential audience.  Viewers coming into Jacob Kornbluth‘s documentary Inequality for All will find Robert Reich‘s explanation of wealth disparity an eye-opening experience or a remedial course with nice visual aids.  The film is transparently an advocacy documentary, and it won’t change the minds of viewers who are convinced that Reich is a communist or a socialist (also because people who level those charges usually don’t know the definition of a communist or socialist).  Kornbluth finds an affable lead figure in the diminutive Reich, but his well-spoken lesson only leads to facile solutions.