Hacksaw. Disney movie. I don't think it's been out in years but the horses and scenery were great. It was about a Canadian wild horse who wouldn't be broken to saddle so he ended up leading a team in chuck wagon races! My copy was off tv and died. Wish they'd rerelease it.
Littlest Horse Thieves- cute family movie. It was about kids that tried to save the pit ponies that were to be sold to slaughter when machines took over.
Just caught today: Mustang Country. 1976, on AMC and I missed the first half. Still the horse was awesome. The grizzly was nothing to dismiss either. More wonderful scenery. Can't believe I'd never heard of it.
The Winter Stallion (AKA the Christmas Stallion) Family Story starring an Awesome black welsh stallion.