The Mouse That Roared (1959)

An impoverished backward nation declares a war on the United States of America, hoping to lose, but things don't go according to plan.

Director: Jack Arnold

Cast: Peter Sellers, Jean Seberg, William Hartnell, David Kossoff, Leo McKern, MacDonald Parke, Austin Willis, Timothy Bateson, Monte Landis, Alan Gifford, Colin Gordon, Harold Kasket, Joe Beckett, Nigel Bernard, Wally Brown, Jacques Cey, Charles Clay, Henry De Bray