My answer is about like Sandra Basgall's earlier answer.  The "Times" and
"Variety" reviews are useful if available.  I also depend on other sources
readily available in the United States.  Most useful, I think, are the
contemporaneous reviews published in the periodicals cited in the biblio-
graphic volumes "The Readers Guide."  For me the whole point to the exercise
is to get a sense of what people were exposed at the time the films were
released and "Readers Guide," by definition of their mission, catalogs mass
circulation periodicals.