Live for Life

Live for Life French Vivre pour vivre is a 1967 French film directed by Claude Lelouch starring Yves Montand, Candice Bergen and Annie Girardot. The film won the Golden Globe for Best Foreign Language Film and was nominated for the Academy Award for Best Foreign Language Film. The film had a total of 2,936,035 admissions in France and was the 7th highest grossing film of the year.

He is then assigned to Vietnam, tells Candice their affair is over and discovers that is more than acceptable to her as she as tired of him. Returning from a Vietnamese prison, he decides to return to Catherine, but discovers she has made a new life for herself.

Source: Wikipedia