When Louis smashes the record playing "Le tango des illusions", it shatters as a 78 rpm shellac record. The label features a variant of Columbia Records' "Magic Notes" design as a 12-inch record. However, Jacqueline Boyer's "Le tango des illusions" was never released as a 78. The song was issued in France in 1962 by Columbia Records as part of a vinyl 7-inch EP under "Le pont vers le soleil". 78s had largely been phased out by 1960.
Although Saint-Fraimbault (a real existing village in Normandy, France) is mentioned in the movie as Rose's hometown, it is Bacilly (also a small village in Lower Normandy) where the actual filming took place of her home and father's grocery store.
The goof item below may give away important plot points.
Errors in geography
During the final, it is showing as evening in New York meanwhile in France it is showing as during the day (early afternoon). France is six hours ahead of New York (instead of behind). Therefore, an evening in New York would be anywhere past midnight and before sunrise in France.