In the books, the Hunger Games sound just like Agenda 21, where people live in these enclaves (districts), and the land outside of these districts are vast areas of land that have been returned to the wild (rewilding).
Panem is the name of the fictional nation, and it derives from the Latin phrase “panem et circenses”, which literally translates into “bread and circuses”.
Accurate, as long as you take into account that the Roman circus was a chariot race, the most popular form of entertainment at the time, not what we think of for the term.