JFK- People treat it like an evenhanded documentary that exposes stuff HIDDEN FROM YOU BY THE DARK FORCES OF THE SHADOW GOVERNMENT, or the mob, or Castro, or NASA, or the Boys Scouts, or a bunch of right-wings gay guys in New Orleans!!!!!!
Stone changed facts and invented others to make the conspiracy theories look better.
He used psuedo-documentary format while showing his "facts". By this, I mean that he shot certain scenes using grainy film and "that damned shakey-cam" to make images that he spun out of whole chothe look like it was shot at the time...that the film you saw was authentic. An example is the shot with the railroad overpass.
His "foreward and back to the left" to support the second gunman theory speech was very effective as cinema, but factually wrong. There is NOTHING in the way that Kennedy slumped after the headshot tht shows he was hit from front right (the grassy knoll) If he was, his skull would have been blown out on the left side instead of the front right. All his skull and brain injuries were consistant with a shot to the rear right of the skull.
The famed "magic bullet" arguement is a willfull misinterpretation of an illustrator's shortening the path of the bullet so that the illustration would fit within the format of the image. Kennedy was sitting higher and to the rear right of Connoly, on a jump seat that sat him higher than the regular seatting. When the shot elements are lned up as the were that day, there is no squigle in the tragectory. Nova has done an excellent job debunking Stone's chicanery.
The big speech at the end of the film was not given by Garrison (Kostner). Garrison wasn't even in the courtromm when it was given by one of his staff.
Occum's razor occassionally needs sharpening.