​From Wikipedia, the free encyclopedia.   Peter Frank Davis, born January 2, 1937 to screenwriters Frank Davis and Tess Slesinger, is an American television and film director, writer and producer. In addition to a long career with CBS News, Davis' Hearts and Minds, a film about American military action in Vietnam, won the Academy Award for Best Feature Documentary for the year 1974. In that same year Davis' wife Johanna "Josie" Mankiewicz, a writer and a member of a distinguished Hollywood fami ...