Some of these pictures and descriptions may give away plot details that you might not want to know before watching the film.
This is a documentary about Ban Kok Sa-Nga, a rural village in Khon Kaein province in NE Thailand, population 655, that is known for its snake shows. Men, women, and children perform on stage with harmless snakes and a few experienced men perform "snake boxing" with venomous cobras. I saw snake shows in Bangkok where the performers got down on the floor with cobras, dodging their strikes and kissing them on the head, and we see lots of that sort of thing here. One crazy retired snake boxer even puts a Cobra down his pants. But what makes this village unique is that the men use enormous King Cobras in their acts. They've been doing it since 1951, but it's a skill that may be dying out since the young boys are not interested in risking their lives to perform with dangerous snakes. (I can't say that I disagree with them.)
None of the cobras used in the shows are rendered harmless in any way. They are not de-fanged, and they don't have their venom glands removed or their mouths sewn up. This is made evident in the documentary when the snake boxers show us their missing fingers from snake bites and talk about snake bite treatments they have endured. During one of the large festivals in the village we see one of the snake boxers bitten by his King Cobra. First the local healers use herbal remedies on him and a snake doctor uses herbs and magic and prayer to help him. We see him drink lots of herbal liquids and ice water and lime juice, but he still goes to the hospital. Once there he is feeling better so he decides not to use anti-venom. He has been bitten so many times that he has developed an immunity to the venom which doesn't kill him but only makes him mildly sick. He's back snake boxing the next day. And later he gets bitten again.
The villagers make a living selling herbal snakebite remedies, and selling common cobras for export to Korea where they are cut open and put in alcohol. They kill and eat harmless rat snakes, but they respect their King Cobras and never kill them. Of course, after the snakes die, the villagers do sell their meat and skins. It would be disrespectful to waste them.