I read the book by Lynne Reid Banks before I saw the movie. She also wrote two sequels to the story as well as the terrific kid's book THE INDIAN IN THE CUPBOARD.
This is the 1962 story of a pregnant French girl who finds a room in a boarding house when her father kicks her out and gradually comes to find a home there too. Other than Leslie Caron in the starring role, the cast is fairly unfamiliar to me although that is Brock Peters playing the horn. One of those movies where you could wallow in its misery. My favorite kind at fourteen (and sometimes now). One of the many British movies about the working class from the fifties and sixties. It is rare now to find movies that treat urban blue-collar people seriously although perhaps it was then too. American audience, in particular, like glamour in their movies, I think.