Corrected entry: When the wild brumbies stampede, Jim jumps on his boss' new horse bareback in the corral to ride after the escapees. However, Jessica's father learns Jim rode his expensive new horse against orders because sweaty saddle marks are later discovered. In the first place, riding bareback doesn't cause saddle marks. In the second place, Jim would never ride a horse and put it away wet like that. No decent horseman would.
Corrected entry: When the colt is leading a stampede of wild horses that run over Jim, there is a man riding a horse in the back of the pack.