
Plot
Three criminals plan to break out of prison the day before their release in order to carry out a daring jewel robbery, intending to establish the perfect alibi by returning to jail afterwards. First however they must get out, a task made more difficult by a new, stricter prison officer.
Trailer
Cast

Peter Sellers
Dodger Lane

Maurice Denham
The Governor

Lionel Jeffries
Chief P.O. Sidney Crout

David Lodge
Jelly Knight

Bernard Cribbins
Lennie Price

Wilfrid Hyde-White
Soapy Stevens

Irene Handl
Mrs. Price

George Woodbridge
Chief P.O. Jenkins

Liz Fraser
Ethel

John Harvey
Governor Rockhampton Prison

Beryl Reid
Miss Pringle

Noel Hood
Miss Prescott

Myrette Morven
Miss Meakin

Edwin Brown
Warder Charlie

Cyril Chamberlain
Gate Warder (Day)

Wallas Eaton
Gate Warder (Night)

Andrew Downie
Garden Warder

Thorley Walters
Col. Parkright

Mario Fabrizi
Jones

Warren Mitchell
Tailor

Arthur Mullard
Fred

Vivienne Martin
Fred's Wife