"While visiting her father, an American teenage girl is thrown into London society during its final "Debutante Season.""
Rex Harrison
as Jimmy Broadbent
Kay Kendall
as Sheila Broadbent
John Saxon
as David Parkson
Sandra Dee
as Jane Broadbent
Angela Lansbury
as Mabel Claremont
Peter Myers
as David Fenner
Diane Clare
as Clarissa Claremont
Sheila Raynor
as Broadbents' Maid (uncredited)
Ambrosine Phillpotts
as Miss Grey (uncredited)
Henri Guégan
as Man at the Airport (uncredited)
René Aranda
as Quaglino Diner (uncredited)
Georges Billy
Jean-Paul Blonday
Pierre Vaudier
Charles Cullum
as English Colonel (uncredited)
Roger LaVern
as Soldier on Guard (uncredited)
Charles Herbert
as (uncredited)
Carl Jablonski
as Dancer (uncredited)
Michel Thomas
Robert Christidès
Set Decoration
Adrienne Fazan
Editor
Jean d'Eaubonne
Art Direction
Pandro S. Berman
Producer
William McGarry
Assistant Director
Joseph Ruttenberg
Director of Photography
Vincente Minnelli
Director
William Douglas-Home
Theatre Play
Screenplay
Julius J. Epstein
Eddie Warner
Original Music Composer
John Truwe
Makeup Artist
Guy Villette
Sound Assistant
Jean Paul Ulysse
Guy Rophé
Sound Mixer
Helen Rose
Wardrobe Supervisor
Kathryn Hereford
Associate Producer