Newsweek
Rollerball isn't a movie; it's a protest demonstration - producer-director Norman Jewison's feeble complaint about both the increasing brutality in professional sports and the increasing sterility of modern life. Trendy concerns, sure enough, but the movie's only contribution could well be the introduction of its brutal, eponymous game to an already sport-surfeited society. [07 July 1975, p.56]