There’s a lynch mob of some kind – maybe vigilantes or rednecks. They have someone/something they are planning to hang because they think he is an enemy or a monster or an evil demon or something. Actually, it’s just a man or an actor in a suit and a mask, but for some reason (he’s mute or gagged or the mask muffles his speech) he can’t explain to them that he’s not who/what they think he is.
I believe they have him on a horse with a noose round his neck tied to a tree, so when they smack the horse away the guy will be hanged.
I think this is from the 80s or early 90s, feature film, could be a ‘horror’ or ‘mystery’ anthology like the ‘Creepshow’ genre, English language.
Sounds similiar to a scene in High’Em High (1968) with Clint Eastwood. Failing that maybe Dark Night of the Scarecrow (1981)
Sounds a lot like an episode from “Amazing Stories”
Season 1, Episode 4 – Mummy Daddy.
An actor (Tom Harrison) dressed as a mummy races from location-filming of a horror movie through a primeval Southern swamp to reach his wife, who is about to give birth. But the locals believe in the eerie legend of Ra Amin Ka, and when they encounter the panicked, bandaged performer, they are positive he is the real deal.