An open mining pit in Tucson was used in the movie. It was one of the largest film sets ever dressed, at least two miles wide, and 1200 feet deep to create Bethlehem's camp. Engineers looked over the drawings for buildings of the future to see if they were structurally sound. They built Bridge City on the face of the dam that supplies half of Seattle's power. Despite the danger from being swept away they persisted with the work while wearing rubber suits.
When Ford-Lincoln-Mercury and the postal carrier from California (Clark) are about to be executed, and Ford introduces himself, we flash to a distance shot, in which we see Clark remove his hat. We then flash to a closeup, and Clark removes his hat again.
As The Postman and General Bethlehem are starting their parley in the climactic scene, a cameraman and camera are visible on the rock face behind the General.
The main character assumes his role because he found an old abandoned mail truck containing the remains of a long dead mailman and pilfered the uniform from the skeleton. The problem here is the condition of the clothing he takes. When a person dies, the body goes through many stages of decomposition on its way to being merely a skeleton. As the tissues break down, many chemicals and enzymes are released, including the hydrochloric acid of the digestive system. In the final stages of decomposition, this is referred to as liquefacation or liquiescence. Given enough time and a suitable environment this combination of byproducts, with the addition of the bacteria that will inevitably emerge, would make any cloth or fabric (with the exception of treated leather products) not only disgustingly filthy, but also so weakened from exposure to what amounts to a corrosive liquid, that the fibers would tear apart from any stresses put on them. Even the act of taking the jacket off of the remains (and certainly that of putting the jacket on himself) would have pulled the fabric apart.
General Bethlehem: I know what your problem is. Do you know why you won't fight? Because you have nothing to fight for! You don't care about anything! You don't value anything! You don't believe in anything! That's what makes me better!
Hasn't Kevin Costner played a drifter with no name in another post apocalyptic film?
A
Yes he did. 2 years earlier, Kevin Costner starred as The Mariner in 1995's Waterworld.
Q
Why couldn't Abby and Michael have a baby?
A
Michael had the viral disease Mumps since he was 12 years old, which is a common childhood disease and causes a rare permanent loss of fertility in adult males.