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.

  1. Jack Arnold


  2. Leonard Wibberley


  3. Roger MacDougall


  4. Stanley Mann


Top Billed Cast

  1. Peter Sellers

    Peter Sellers

    Grand Duchess Gloriana XII / Prime Minister Count Rupert Mountjoy / Tully Bascombe

  2. Jean Seberg

    Jean Seberg

    Helen Kokintz

  3. William Hartnell

    William Hartnell

    Will Buckley

  4. David Kossoff

    David Kossoff

    Professor Alfred Kokintz

  5. Leo McKern

    Leo McKern


Full Cast & Crew

The Mouse That Roared
The Mouse That Roared



Status Released

Release Information

  • October 26, 1959


Original Language English

Runtime 1h 23m

Budget -

Revenue -



Content Score


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