I resaw after many years The Nun's Story (1959) directed by Fred Zinneman and starring Audrey Hepburn. Nothing to do with Chaucer's Canterbury Tales. It is a serious film and ultimately quite downbeat. I am interested in the film as Fred Zinneman was a great director, Audrey Hepburn is my favourite actress, and one of my aunts is a nun.
The book from which the film was made is a semi-fictional story of a real nun. Although the film ends with Hepburn leaving the convent, it leads it open as to whether she would join the resistance (the film ends during WW2) as a nurse or whether she would go back to where she had been working as a nurse in what was the Belgian Congo but is now the Democratic Republic of the Congo. The real nun joined the resistance as a nurse, then at the end of the war in displaced prisoners camps where she met the writer of the book. She eventually moved to Arizona and then Hawaii.
It is hard to imagine that anyone other than Audrey Hepburn could have played this role. Both the nun and Audrey Hepburn were born in Belgium. Both were deeply affected by being in Europe during WW2. The scenes set in the Congo were filmed there, and I think these mist have influenced Audrey Hepburn when in the latter part of her life she threw herself into her work as a Unicef goodwill ambassador going to the poorest countries and bringing the plight of starving children to the attention of the world.