The Happy Hooker is a 1975 comedy film directed by Nicholas Sgarro and starring Lynn Redgrave. It was adapted from a bestselling book based on the life of Xaviera Hollander.
Observing how Carl does not help her take her bags off the airplane and his increasingly long morning routine and primping, Xaviera grows concerned he is not the man she thought he was. Her suspicions are confirmed when his mother insults her over dinner. Xaviera offers him a choice of her or his mother and he picks his mother.Xaviera finds work at the Dutch Embassy as a translator and secretary. She is asked on a date by Frenchman Yves Aumont and quickly falls in love with him and his extravagant lifestyle, as Yves has made a small fortune as a consultant for large corporations and even small countries. ........
Source: Wikipedia