Goofs

In the opening scene at the bar, Marius is seen grabbing a green bottle of wine for his customer from the bar, but when he arrives at the outdoor table to pour the glass, the bottle is now clear.

During the opening credits, the captain makes several turns of the wheel which would have caused the ferry to turn while crossing the harbor. The shots through the ferry showing the background and the overhead shot reflect no change in the straight line course.

Near the end of the film, when Panisse looks from his bed, the angle is such that he could not possibly see the boy, Cesario, jumping on the trampoline.

Concerned for his son's health, Cesar gets upset when Fanny is reading the letter and mentions the plague. However, Fanny later reads that it wasn't actually the plague, and since it is later indicated that Cesar had already read the letter (e.g. by saying "it gets scientific here"), he should have already known this and had no reason to get upset. This was included purely for the sake of humor.

Near the beginning, when Fanny is discussing the boy with pimples and boils with Marius, she glances at the camera.

Set in the 1920s, the cityscape behind Fanny when she climbs to the cathedral shows several very post-war blocks.

The story is set in the 1920s and 1930s, and a few contemporary automobiles are used. However, as seen from inside Marius' auto repair shop when he meets his son, 1960 cars are visible in the street.