As far as producer, director, femme lead and screenwriter are concerned, this attempt to visually analyze the bits and pieces that go into making a marriage, and then making it work, is successful. If it drags a bit here and there, blame it on the stodgy performance of actor Albert Finney who is unable to convey the lightness, gaiety and romanticism needed.
In the story, the same married couple make basically the same trip, from London to the Riviera, at three different stages of their life with continual crosscutting and flashing backwards and forwards from one period to the other.
The credibility of the changes in periods is left, except for changes of costume and vehicular equipment, to the two leads. Finney remains the same throughout but Audrey Hepburn is amazing in her ability to portray a very young girl, a just pregnant wife of two years, and a beginning-to-be-bored wife of five years.
1967: Nomination: Best Original Story & Screenplay