
Businessman Paul Bultitude is sending his son Dick to a boarding school. While holding a magic stone from India, he wishes that he could be young again. His wish is immediately fulfilled and the two change bodies with each other. Mr Bultitude becomes a school boy who smokes cigars and has a very conservative view on child upbringing, while his son Dick becomes a gentleman who spends his time drinking lemonade and arranging children's parties.

Roger Livesey
Paul Bultitude

Anthony Newley
Dick Bultitude

Kay Walsh
Florence 'Fanny' Verlane

Petula Clark
Dulcie Grimstone

James Robertson Justice
Dr. Grimstone

David Hutcheson
Marmaduke Paradine

Harcourt Williams
Judge

Bill Shine
Lord Gosport

Kynaston Reeves
Dr. Chawner
Ernest Jay
Bowler

Joan Young
Mrs. Grimstone

Patricia Raine
Alice

Vida Hope
1st Nanny

Vi Kaley
2nd Nanny
Andrew Blackett
Duke of Margate