- Country: USA
- Genres: Comedy
- Release: 1952-05-30
- Director: Don Weis
- Writers: Sidney Sheldon , Max Trell
- Language: English | German
- Stars: Janet Leigh , Peter Lawford , Lewis Stone (I) (1879–1953) , Marilyn Erskine , Richard Anderson , Douglas Fowley , Hanley Stafford , Henry Slate , Jerry Hausner , Benny Rubin
- Runtime: 90 min
- Awards: 1 win
- AKA: Une fois n'engage à rien (France, French Republic) , Millonario sin dinero (Venezuela) , Lo sprecone (Italy) , Kun for en nat (Denmark) , Just This Once (United Kingdom) , Eine Falle für den Playboy , Só Esta Vez (Brazil) , Just This Once (United States of America) , Sólo por esta vez (Mexico) , Eine Falle für den Playboy (Germany) , För en gångs skull (Sweden) , Just This Once , Milionário... Sem Dinheiro (Portugal, Portuguese Republic)
- Plot: Mark MacLene owes the IRS, the banks and others a lot of money. The problem is that his trust makes $1,000,000 a year, but he spends $150,000 every month. His trustee, Sam, uses the power of attorney and the spend thrift clause to hire frugal Lucille Duncan to manage Mark's finances. Presented with thousands of dollars for gifts and charges from the night before, she immediately cancels his charge accounts and returns as many gifts as she can. Then she puts Mark on a allowance of $50 a week, which upsets him even more. To get rid of Lucy, Mark moves in with her and makes sure that her boyfriend Tom receives a huge raise. He thinks that Tom will now marry Lucy and he will be rid of her tight control.
- IMDB:tt0044781
Just This Once Cast · · · ALL
Don Weis
Director
Janet Leigh
Lucy Duncan
Peter Lawford
Mark MacLene IV
Lewis Stone
(I)
(1879–1953)
Judge Samuel Coulter
Marilyn Erskine
Gertrude Crome
Richard Anderson
Tom Winters
Douglas Fowley
Frank Pirosh
Phyllis Kirk
Young Lover on Ferry
Jerry Hausner
Stanley Worth
Benny Rubin
Herbert Engel
John Eldredge
Commander Denham
Alvin Greenman
Archie
Joseph Mell
Mr. Green
Ida Moore
Mrs. Morgan
William ‘Bill’ Phillips
Caddie Horace Melnick
Emerson Treacy
Mr. Black
Bill Welsh
Mr. Sanford
Dave Willock
Caddie Ralph Roberts
Victor Wood
William