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.
| Directing | Peter Ustinov | Director |
| Writing | Peter Ustinov | Writer |
| Sound | Antony Hopkins | Music |
| Writing | F. Anstey | Novel |
| Camera | Jack Hildyard | Director of Photography |
| Camera | Arthur Ibbetson | Camera Operator |
| Crew | Henry Harris | Special Effects |
| Sound | Reg Barnes Heath | Sound Recordist |
| Sound | Harry Miller | Sound Editor |
| Sound | L.E. Overton | Sound Recordist |
| Directing | Michael Anderson | Assistant Director |
| Costume & Make-Up | Geoffrey Rodway | Makeup Artist |
| Costume & Make-Up | Vivienne Walker | Hair Designer |
| Costume & Make-Up | Nadia Benois | Costume Design |
| Art | Colleen Browning | Set Decoration |
| Art | Carmen Dillon | Art Direction |
| Editing | John D. Guthridge | Editor |
| Production | George H. Brown | Producer |
| Production | Peter Ustinov | Producer |
| Production | Paul Sheriff | Associate Producer |
