Abraham Zapruder as the director of American history

New Republic film critic David Thomson on "The Film that Took Over History:"

"In the 50 years since November 23, 1963, a reasonably alert American has likely seen about 50,000 'deaths' on film or television, real or simulated. We have seen so many people shot, we think we know the bodily dynamics," Thomson writes.

" And so with the Kennedy shot, most ordi…