- Country: USA
- Genres: Comedy, Romance
- Release: 1937-12-10
- Director: George B. Seitz
- Writers: Kay Van Riper , Aurania Rouverol
- Language: English
- Stars: Lewis Stone (I) (1879–1953) , Cecilia Parker , Mickey Rooney , Fay Holden , Frank Craven , Ann Rutherford , Eleanor Lynn , Ted Pearson , Sara Haden , Charles Judels
- Runtime: 78 min
- Awards: N/A
- AKA: Andy Hardy på vift (Sweden) , You're Only Young Once (Australia) , De familie Hardy op vacantie (Belgium) , Jednom si samo mlad (Croatia) , You're Only Young Once , Ungdommen raser (Norway) , La famille Hardy en vacances (Belgium) , You're Only Young Once (India) , Samo enkrat si mlad , La famille Hardy en vacances (Canada) , Aproveite a Mocidade! (Brazil) , As Férias da Família Hardy (Portugal, Portuguese Republic) , Jednom si samo mlad , Las vacaciones del juez Harvey (Spain) , Μια φορά είν' τα νειάτα (Greece) , Andy Hardy på viften (Denmark) , Nuoruus ja hulluus (Finland) , Samo enkrat si mlad (Slovenia) , You're Only Young Once (United Kingdom) , You're Only Young Once (United States of America)
- Plot: On vacation with his family on California's Catalina Island, Andy Hardy falls head over swim fins for a sophisticated young beauty. Judge Hardy warns his son that she is too fast for him.
- IMDB:tt0030997
You’re Only Young Once Cast · · · ALL
George B. Seitz
Director
Lewis Stone
(I)
(1879–1953)
Judge Hardy
Cecilia Parker
Marian Hardy
Mickey Rooney
Andy Hardy
Fay Holden
Emily Hardy
Frank Craven
Frank Redmond
Ann Rutherford
Polly Benedict
Eleanor Lynn
Jerry Lane
Ted Pearson
Bill Rand
Sara Haden
Milly Forrest
Charles Judels
Captain Swenson
Selmer Jackson
Hoyt Wells
Jack Baxley
Court Clerk (uncredited)
Wilson Benge
Francois (uncredited)
Billy Dooley
Postman (uncredited)
Mary Gordon
Mary's Mother (uncredited)
Ruth Hart
Mary (uncredited)
Spec O’Donnell
Drowsy (uncredited)
Oscar O’Shea
Sheriff (uncredited)
Garry Owen
Guide (uncredited)
Norman Phillips Jr.
Harold (uncredited)
Phillip Terry
Pilot (uncredited)
Robert Wayne
Ed Carter (uncredited)