Trivia

In the vehicle chase scene, where Dr. Jonathan Hemlock (Clint Eastwood) was being pursued along a cliff road by Miles Mellough (Jack Cassidy) and his bodyguard Dewayne (Dan Howard), there was so much dust that Howard could not see where he was driving. To compensate, he drove looking up through the sunroof and followed the ridge line above. While effective, this driving method so unnerved Cassidy that he demanded his stuntman take his place in the vehicle. See more