Angela's Ashes controversy

When we discussed Angela's Ashes, Page Turner mentioned having found an interview with the great late actor Richard Harris in which he refutes Frank McCourt's recollections of Limerick. Harris is a native of Limerick and actually calls McCourt a liar on several points; both versions can't be right. Read the Harris interview here, and McCourt's response here. This controversy makes the story all the more intriguing, especially the questions that Harris raises over the relationship between Frank and Malachy, and between both sons and their mother.