I went to a re-enactment of the Battle of Franklin-Nashville, on the original battlefield. At that time it was said to be one of the larger re-enactments til that time, about 25,000 participants. There was a company of re-enactors, I think they were all from Texas, who were stunt-men/extras for the movies. They would roll off their horses at full gallop, the horses dropped like they'd been shot, too. They put on a hell of a show. Interestingly, when the riders fell/got shot, the horses stopped almost in their last steps, and stayed rooted to that spot, till their rider got up and came and got them. All of them did this, every one.
Also, these guys (all the re-enactors) are hard core. At the one I went to, there was literally white canvas tents by the thousands. Root beer brewed on site, 1860s style.

Kept the bottle.
I have all this on Sony
8mm videotape. Yeah, I know, great decision. $1000 well-wasted.