- Country: USA
- Genres: Adventure, Comedy, Drama
- Release: 1942-11-27
- Director: Leo McCarey
- Writers: Sheridan Gibney , Leo McCarey
- Language: English | French | German | Hebrew | Spanish | Polish | Norwegian
- Stars: Ginger Rogers , Ginger Rogers , Ginger Rogers , Cary Grant , Walter Slezak , Albert Dekker (1905–1968) , Albert Bassermann , Ferike Boros , John Banner , Harry Shannon , Natasha Lytess , Fred Aldrich
- Runtime: 117 min
- Awards: Nominated for 1 Oscar. 1 nomination total
- AKA: Era uma Vez uma Lua-de-Mel (Brazil) , Paronitar painuu maan alle (Finland) , Fuggiamo insieme (Italy) , Es waren einmal Flitterwochen , Hubo una luna de miel (Spain) , Es waren einmal Flitterwochen (Germany) , Leo McCarey's Once Upon a Honeymoon (United States of America) , Era uma Lua de Mel (Brazil) , Lua Sem Mel (Portugal, Portuguese Republic) , Paronitar menee maan alle (Finland) , Lune de miel mouvementée (France, French Republic) , Lluna de mel (Spain) , Volt egyszer egy nászút (Hungary) , Leo McCarey's Once Upon a Honeymoon (United Kingdom) , O luna de miere (Romania) , Οι συνωμόται της 5ης φάλαγγος (Greece) , Pewnego razu podczas miodowego miesiąca (Poland) , 恋の情報網 (Japan) , Once Upon a Honeymoon (United States of America) , Однажды в медовый месяц , Once Upon a Honeymoon , Aventura matrimonial (Mexico) , Baronessan går under jorden (Sweden) , Baronessen går under jorden (Denmark)
- Plot: At the start of WWII, Katie O'Hara, an American burlesque girl intent on social climbing, marries Austrian Baron Von Luber. Pat O'Toole, an American radio reporter, sees this as a chance to investigate Von Luber, who is suspected of having Nazi ties. As country after country falls to the Nazis, O'Toole follows O'Hara across Europe. At first he is after a story, but he gradually falls in love with her. When she learns that her husband is indeed a Nazi, O'Hara fakes her death and runs off with O'Toole. In Paris, she is recruited to spy for the allies; he uses a radio broadcast to make Von Luber and the Nazis look like fools.
- IMDB:tt0035151
Once Upon a Honeymoon Cast · · · ALL
Leo McCarey
Director
Cary Grant
Patrick O'Toole
Ginger Rogers
Katherine Butt-Smith/Katie O'Hara
Walter Slezak
Baron Franz Von Luber
Albert Dekker
(1905–1968)
Gaston Le Blanc
Albert Bassermann
General Borelski
Ferike Boros
Elsa
Harry Shannon
Ed Cumberland
Natasha Lytess
Anna
John Banner
Von Kleinoch (uncredited)
Hans Joby
Kleinoch's Driver (uncredited)
Hans Conried
Vienna Tailor's Fitter (uncredited)
Fred Niblo
Ship's Captain (uncredited)
Fred Aldrich
German Storm Trooper (uncredited)
Frank Alten
Official Saying 'Spontaneity' (uncredited)
Felix Basch
Herr Kelman (uncredited)
Brandon Beach
Civilian (uncredited)
Walter Bonn
German Officer (uncredited)
Walter Byron
Guard (uncredited)
Gordon B. Clarke
German Officer (uncredited)
Alexis Davidoff
Traveler in Warsaw (uncredited)
Boyd Davis
Chamberlain (uncredited)
Jimmy Dime
German Storm Trooper (uncredited)
Carl Ekberg
Adolf Hitler (uncredited)
Bess Flowers
Bridge Player (uncredited)
Arno Frey
German Officer (uncredited)