No images please.
Pretty much a rarity nowadays I think but the Wake In Fright thread made me think of films where this has taken place.
My mum used to talk about a film called Charge of the Light Brigade and would say how cruel the filming methods were.
Although one still could make the point of tripwires being used with horses, there is a lot of dubious and/or bad information about the making of Charge of the Light Brigade - e.g. Curtiz wasn’t in charge of the charge scene, he didn’t come to blows with Flynn (on that film anyway) and the numbers mooted about horses being killed vary wildly but could be four for the entire film
I recently watched the Errol Flynn episode of the Discovering series and one of the contributors (Derek Malcolm, I think) made largely the same claims in what you quoted, plus that one of the stuntmen had died. In another thread, I was going to mention this but thought best to double-check figures and that a stuntmen was definitely killed and quick web search virtually no mention of the latter and the amount of horses that died ranged from 10 or over 100 (in one article, it was over 200).
One of the main sources for the claims is David Niven’s memoirs, written decades later, and although they are fabulously entertaining, factual accuracy isn’t a hallmark. Although the blame for the charge scene is put on Curtiz, it was shot by second unit director, ‘Breezy’ Eason, who was also responsible for the chariot race scenes of the earlier Ben Hur, which caused the deaths of many horses; the figure of 100 to 150 is invariably cited.
The claim about Flynn physically having a pop at Curtiz over the charge scene has been debunked from what I’ve read - it’s been pointed out that the two got into an confrontation on another film several years later, so think that’s a reason for the story.
The best source of information I could find is this article:
https://alankrode.com/the-true-story-of-the-charge-of-the-light-brigade/, which is written by a biographer of Curtiz, who accessed legal documents and studio records. From this, four horses were definitely killed during the making of the film; Rode doesn’t exclude the possibility that more died but there is no evidence for that or that the studio engaged in a massive cover-up.