In this adaptation of Leonard Wibberley's satirical novel, the world's smallest country, the Duchy of Grand Fenwick, stays afloat by exporting wine to America. But when California bottles a cheaper version, bankruptcy looms for the tiny Duchy. So, they take matters into their own hands by waging war against America. In a comic tour de force, Peter Sellers plays three separate roles. Jean Seberg co-stars and Jack Arnold directs.