Jack Arnold	...	(Director)
Stanley Mann, Leonard Wibberley, Roger MacDougall	...	(Writer)
Peter Sellers	...	Grand Duchess Gloriana XII / Prime Minister Count Rupert Mountjoy / Tully Bascombe
Jean Seberg	...	Helen Kokintz
William Hartnell	...	Will Buckley
David Kossoff	...	Doctor Alfred Kokintz
Leo McKern	...	Benter
MacDonald Parke	...	General Snippet
Austin Willis	...	United States Secretary of Defense
Timothy Bateson	...	Roger
Monte Landis	...	Cobbley
Alan Gifford	...
Colin Gordon	...	BBC Announcer
Harold Kasket	...	Pedro
Edwin Astley	...	Composer
John Wilcox	...	Cinematographer
Raymond Poulton	...	Editor
Red Law	...	Sound Department
Richard Marden	...	Sound Department
George Stephenson	...	Sound Department
Geoffrey Drake	...	Art Director
Anthony Mendleson	...	Custome Designer
Stuart Freeborn	...	make-up
Joyce James	...	Hairdresser
Philip Shipway	...	Assistant Director

Summary: The Duchy of Grand Fenwick decides that the only way to get out of their economic woes is to declare war on the United States, lose and accept foreign aid. They send an invasion force to New York (armed with longbows) which arrives during a nuclear drill that has cleared the streets. Wandering about to find someone to surrender to, they discover a scientist with a special ultimate weapon that can destroy the Earth. When they capture him and his bomb they are faced with a new possibility: What do you do when you win a war?