Re: Z-film, JFK Forward Motion @ 230

I think the head does nod forward a bit starting at frame 230. But the 
real noticeable and significant movement is the raising of the arms, which

starts at frame 226. The arms are then held in this position for the next 
4 to 5 seconds. Clearly, the raising of the arms is the significant 
reaction. And it starts at frame 226.

I am not certain why he would raise his elbows like that, while not 
wounded, then get wounded, and decide to keep the arms where they are. In 
all probability, it is the arms movement that shows when he first starts 
to physically react.