We consider the classic 1952 western High Noon written and released 70 years ago — during an era of paranoia and persecution in America over the threat of communism — in which the President, congress, the courts and the press all played a part. We talk with journalist Glenn Frankel, author of the book High Noon: The Hollywood Blacklist and the Making of an American Classic. The film was written as a parable about the blacklist.Also, Justin Chang reviews Avatar: The Way of Water.