It is the most famous home movie of all time, the most closely analyzed 26 seconds of film ever shot, the most disturbing visual record of what many have called "the crime of the century." In 486 frames--a mere six feet of celluloid--Abraham Zapruder's iconic film captures from beginning to end the murder of President John F. Kennedy in broad daylight. An essential piece of evidence, the film has become nearly synonymous with the assassination...