This movie is based on the book "Mrs. 'Arris Goes to Paris" by Paul Gallico published in 1958. Paul wrote a series of four books about Mrs. 'Arris - "Mrs. 'Arris Goes to Paris", "Mrs. 'Arris Goes to New York", "Mrs. 'Arris Goes to Parliament", and "Mrs. 'Arris Goes to Moscow".
The date on Lord and Lady Dant's invitation to the Coronation Ball at Buckingham Palace is historically accurate. In 1953, June 5th fell on a Friday.
This movie's sole Emmy nod went to Jane Robinson for her dazzling re-creation of Christian Dior's 1950s haute couture fashions, presented in several runway shows in the course of the story.
The Ferrari 275 featured in the film wasn't in production in the early 1950's it's a 1963 production.
Diana Rigg here plays Mme Colbert, the first of her three screen roles as a Frenchwoman, Rigg subsequently co-starring in Charles II: The Power & the Passion (2003) (as the historical Queen Henrietta Maria) and The American (1998) (as Mme de Bellegarde). Rigg had in 1982 headlined the short-lived stage musical ''Colette'', Rigg then playing la romancière Colette with "my British voice".