hi Jim
w/o knowing the story line it could be a white flag of surrender
type thing but I do not know if that was a common occurence in that
part of the world at that time...I admit to being more unfamiliar with
the far east and their horsemanship practices after about he time of
the great steppe warlords..and even that is too far west for this
movie...
as for the horse he is in "flat out " gallop with his near hind about
to push the rest of him into the next stride...I think he is not
resisting the bit but rather has assumed a common race horse position
at this speed
Tamara in TN