this into a novel changing Ireland to the Duchy of Grand Fenwick. Reception Anthony Boucher praised the novel as "utterly delightful...a very nearly perfect book, on no account to be missed." Adaptations Film adaptation The Mouse That Roared was made into a 1959 film starring Peter Sellers in three roles: Duchess Gloriana XII; Count Rupert Mountjoy, the Prime Minister; and Tully Bascomb, the military leader – and Jean Seberg, as Helen Kokintz, as an added love interest. Other cast members included: William Hartnell as Sergeant-at-Arms Will Buckley; David Kossoff as Professor Alfred Kokintz; Leo McKern as Benter the opposition leader; MacDonald Parke as General Snippet; and Austin Willis as the United States Secretary of Defense. In 1963, a sequel, based on The Mouse on the Moon, was released. Stage adaptation The Mouse That Roared was adapted for the stage by Christopher Sergel in 1963. The play portrays Duchess Gloriana XII as twenty-two years old, as in Wibberley's novel. In this version, Dr. Kokintz is a physics professor at Columbia University and the arrival of Tully Bascomb's invasion force coincides with a campus student protest. Thus, the Fenwick soldiers are mistaken for being eccentric protesters rather than as foreign invaders. Television pilot In 1964, Jack Arnold produced a television pilot based on the film, with Sid Caesar playing the three roles that Sellers had played, but it was not picked up for production. Radio adaptation BBC Radio 4 broadcast a one-hour adaptation on 15 February 2003 and 22 May 2010 as part of its Saturday Play series. The production was directed by Patrick Rayner and starred Julie Austin as Gloriana, Mark McDonnell (who co-adapted the book for radio) as Tully, Crawford Logan as Count Montjoy, Simon Tait as Dr. Kokintz and Steven McNicoll (who also co-adapted the book) as Mr. Benter. References 1955 American novels Irish-American novels Novels first published in serial form Novels set in fictional countries Works originally published in The Saturday Evening Post Irish novels adapted into films 20th-century Irish novels American comedy novels Little, Brown and Company books