Ok so there are a lot of apocalyptic type movies around, but this pic focus's on a team playing a brutal futuristic sport (kind of like football with weapons) in the wastelands and leaves just hints of the technologically advanced rulers and world. If you like Fallout or have read Piers Anthony's Battle Circle books you should really give this movie a go. The best uncut version is called Giochi Di Morte The Salute Of The Jugger /1990 and it has an english track don't worry. I dont want to give away the plot so go watch it. I also highly recommend reading the Battle Circle books, interesting focus on how society would function.
Hope you enjoy!