This is part 6 in a series in which, for reasons not really clear, I watch all watchable movies with Kevin Costner. And maybe even some unwatchable ones. I will then comment on them here for you, including a synopsis in case you aren't familiar with them.
Synopsis: In the distant post-apocalyptic future of 2013, a man (Kevin Costner) wanders around rural America with his ass (not Kevin Costner). He shuns civilization, but he's in need of food, and so he makes a living by performing a crude version of Shakespeare in the villages. He gets swept up by the evil General Bethlehem (Will Patton), who recruits him into his army. The man manages to escape and stumbles on the remains of a postman. He opts for a desperate gambit, pretending to be a postman of the "Restored United States" to get some food. It works way better than intended, and soon a fan founds a copycat enterprise that starts a revolution against Bethlehem, drafting the wayward Postman into it as a leading figure...