Factual error: When Clint Eastwood first goes to the barber shop, the barber very deliberately sharpens his razor the wrong way, flipping the blade with its sharp edge against the strop - this would instantly dull the blade. No real barber would make this mistake, but it's a common movie error.
Factual error: The newly born foal is too dry and too steady on its legs. (00:22:25)
Factual error: Anne Margaret is seen changing into pants, and as she's shown stepping into the pant leg she is wearing white pantyhose. Pantyhose wasn't invented at this time.