One interesting thing I learned from Professor Mellen's book, a defense of Garrison, of course, demonstates a rather substantial falsehood in Oliver Stone's "JFK". Perhaps it is too strong a statement to call it a lie but it certainly involves a misrepresentation of a material and important fact.
Everyone is of course familiar with the story of Charles Spiesel, the New York accountant who testified for Garrison but under cross-examination revealed so many idiosyncrocies that his testimony alone may have cost Garrison the case. In "JFK" we see Garrison visibly disturbed hearing the cross-examination and then staring angrily at one of his assistants who protests that he did not know.
In Professor Mellen's book it is revealed that Garrison was fully aware of the problems with Spiesel and there was an internal debate in Garrison's camp whether to put him on the stand. Mark Lane argued strongly against it.
The decision to use Spiesel despite his problems may have cost Garrison dearly but it was his own decision. One can debate the merits of the strategic decision to call Spiesel but it is clear Garrison committed a fundamental trial error. Every trial lawyer knows that if you must present a witness who has "issues" the lawyer must minimize the impact of those issues by bringing them out on direct examination. Doing so significantly decreases the adverse effect; essentially it "takes the wind" out of the defense's "sails".
Once Garrison decided to call Spiesel, he should have gone over all of Spiesel's problem on direct examination. Of course, with the benefit of hind-sight, Mark Lane was correct: Garrison should never have called him.
I find it hard to believe that Stone was not aware of Garrison's knowledge of the problems with Spiesel.
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While I am on the subject of "JFK", Ian Griggs' "No Case To Answer" does a wonderful job of debunking the myth that there was anything sinister about the coverage in the Christchurch, New Zealand newspaper of the assassination (the famouse scene with "X"). Mr. Griggs is quite critical of Mr. Stone in this regard. This may be more important because it is one of the linchpin's the movie uses to prove a conspiracy.
