On: Pulled from a Field in Albania, a 2,500-Year-Old S...

[User23]

Either the sound was added later or those were exceptionally well trained animals. Probably both.

My brother did civil war reenactment and there was a lot of black powder exploding and they managed to train the horses to tolerate it. But it definitely took training!

[lm28469 → User23]

All of it is added in post, they'd all be deaf after filming the first scene otherwise