Mouse That Roared, The (1959, U.K.)

In this outlandish, sidesplitting tale of the fortunes of the Duchy of Grand Fenwick, a mythical land on the verge of bankruptcy because its one export, a fine wine, has been undercut by a US company. Grand Fenwick’s prime minister (Peter Sellers) and female monarch (Sellers again) cook up a scheme to solve the problem: they will declare war on the States.