On film and TV, we've seen President John F. Kennedy's assassination from just about every point of view possible, from that of conspiracy theorist attorney Jim Garrison ( JFK) to an aging secret service agent ( In the Line of Fire) to an ordinary hairdresser ( Love Field) to the staff of the hospital where Kennedy was taken ( Parkland) and even to time-travelers (11.22.63, Quantum Leap). Lost across almost all of these depictions, apart from a little-remembered 1991 ...