La Smala.

When the mother of a "tribe" of five children leaves for good, their inept father is not sure how to keep the family clothed and fed, and without the help of his neighbor Simone, he would be nowhere. She is attracted to him but eventually gives up on the relationship. Meanwhile, the father grabs his brood and they take off for Paris in search of the wife. But Simone accidentally ends up on the same train...