Rollerball is a 1975 dystopian science fiction sports film directed and produced by Norman Jewison. It stars James Caan, John Houseman, Maud Adams, John Beck, Moses Gunn and Ralph Richardson. The screenplay, written by William Harrison, adapted his own short story "Roller Ball Murder", which had first appeared in the September 1973 issue of Esquire.

A dystopia, also called a cacotopia or anti-utopia, is a community or society that is extremely bad or frightening. It is often treated as an antonym of utopia, a term that was coined by Sir Thomas More and figures as the title of his best known work, published in 1516, which created a blueprint for an ideal society with minimal crime, violence, and poverty. The relationship between utopia and dystopia is in actuality, not one simple opposition, as many utopian elements and components are found in dystopias as well, and vice versa.