I was first suspicious of Monty Roberts when I read his book. It didn't set right with me; he claimed to have done just too many things, from "inventing" the slant nose trailer, to working with James Dean, to "training the Queens horses", to all his film experience; LOTS of bravado. On top of that his childhood, the experiences with his father, and most of all, his sitting in the desert for days watching wild horses at 15 years of age. At the very least, his claims seemed greatly exaggerated.
I did attend one of his clinics, and he did seem to have a way with horses, so that was good.
THEN, I read the book "Horse Whispers and Lies" written by his family members. That book made total sense to me. For me, it only confirmed what I already suspected; more than exaggeration, but out and out lies.
Even his family says he can work with horses, and much of what he learned came from his Father. But one thing I don't like is a liar; on ANY level. Therefore, for me, I have NO USE for Monty Roberts.
"Do you give the horse its strength, or clothe its neck with a flowing mane?" (Job 39:19)