As those of you familiar with his work might expect, Morris uses the example of David Ray Harris, a man executed in Texas in 1985 for murder (during a botched kidnapping). Harris is, however, far more famous for allegedly killing a traffic policeman. Morris in his acclaimed 1988 documentary The Thin Blue Line argued that Harris was innocent of the latter crime, going as far as to obtain a confession from the real killer on tape, but the court, and most Texas policemen, still considered Harris guilty. The meat of the interview concerns his more recent work, The Fog of War (official site), a retrospective on former SecDef Robert S. McNamara that shines some positive light on a pretty uniformly hated figure.
American Amnesia interviews Errol Morris. A fascinating discussion of how unwilling we are to change our negative opinions when new information about the past surfaces.