The script originally called for Whit (Kyle Eastwood) to get high from smoking marijuana, but Clint Eastwood, who is very anti-drug, refused, even with Kyle using a prop cigarette. Eastwood finally relented to his son's character getting high from a contact buzz.
Final movie appearance of country singer Marty Robbins (Smoky). Because of a heart attack following cardiac surgery, Robbins died just a few weeks before this movie was released in theaters.