With their headmistress under lock and key in her majesty's prison, the St Trinian's girls find themselves under the protection of the army. However, when the sixth form take a fancy to winning a trip to Italy through means fair or foul, the army discover this is one battle they can't win. Let loose in Europe, it is not long before St Trinian's have succeeded in endangering European relations.
Terry-Thomas
as Capt. Romney Carlton-Ricketts
George Cole
as "Flash" Harry
Joyce Grenfell
as Sgt. Ruby Gates
Alastair Sim
as Miss Amelia Fritton
Sabrina
as Virginia
Lionel Jeffries
as Joe Mangan
Lloyd Lamble
as Superintendent Samuel Kemp-Bird
Raymond Rollett
as Chief Constable
Terry Scott
as Police Sergeant
Ferdy Mayne
as Italian Police Inspector
Thorley Walters
as Major Whitehart
Michael Ripper
as Eric - The Liftman
