Across the Great Divide (1976)

Revealing mistake: When the children stay with the tribe, all of the horses being ridden, although shown having a saddle blanket, actually have saddles under those blankets.

goofyfoot

Jason Smith: Are you really a trickster?
Zachariah Coop: Oh, I think most people are at a certain level. But remember this: you can't trick a man unless he's aiming to trick you.
Jason Smith: How come?
Zachariah Coop: Well, because people in general like the idea of getting something for nothing. And the trickster affords him that opportunity.

Zachariah Coop: I'm going to give up gambling until I get you there.
Holly Smith: I don't believe it.
Zachariah Coop: Well, I'd be willing to bet ya.

Zachariah Coop: A good Christian does not flinch with difficulty.
Holly Smith: He doesn't court them by drinking either.