Synopsis
When a well-loved headmaster decides to retire, his scheming pupils have other ideas. The cunning boys unleash a campaign of practical jokes, armed with gin, itching power, and bombs!
Cast

Kenneth Connor
Mr. Gregory Adams

Charles Hawtrey
Mr. Michael Bean

Leslie Phillips
Mr. Alistair Grigg

Joan Sims
Miss Sarah Allcock

Kenneth Williams
Mr. Edwin Milton

Hattie Jacques
Miss Grace Short

Rosalind Knight
Miss Felicity Wheeler

Cyril Chamberlain
Alf Hodgson

Ted Ray
Mr. William "Wakie" Wakefield
George Howell
Billy Haig
Diana Beevers
Penny Lee
Jacqueline Lewis
Pat Gordon
Roy Hines
Harry Bird

Carol White
Sheila Dale

Richard O'Sullivan
Robin Stevens

Francesca Annis
Schoolgirl (uncredited)
Lorna Henderson
Pianiste (uncredited)
Diane Langton
Schoolgirl (uncredited)
Jane White
Irene Ambrose
Paul Cole
John Atkins

Larry Dann
Student
Joyce Adams
Parent (uncredited)
Laurence Archer
Parent (uncredited)
Julia Atkinson
Student (uncredited)
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