The Zapruder Film is the most remarkable and also one of the most gruesome amateur cine-films ever made. When you watch it , you are literally watching the course of world history change before your eyes. One of the most powerful men in the world at the time is murdered in front of your eyes in such a gruesome way, Kennedy's head literally explodes and the shocking aftermath that follows it. The thing that I find remarkable about it is how quick it happens, from the top of Elm street where Kennedy is smiling and waving to when he gets near the underpass and is life is taken away from him in an instant. Another shocking thing about the film is how slow the Secret Service were in protecting their boss, any reaction by them comes after the event, when it's too late.