I caught an interesting and depressing Charlie Rose interview with Liev Schreiber discussing Macbeth. Mr. Schreiber was taken aback by Rose's referring to Macbeth as evil. Schreiber them proceeded to explain the typical age-old argument of Macbeth as a good (And to many, a great) man gone wrong who kills Duncan to please his wife and who, ultimately, greatly regrets having done the deed because he is a man of deep conscience. This is after all a tragedy and therefor requires the fall of an individual of great stature and/or position.
Wrong!