The umbrella shop still exists at 13 Rue De Port, Cherbourg, and is marked with a plaque that commemorates the film.
In the beginning, a black car rolls into the garage where Guy works, and Guy is asked to assist with the car's problems. This car is actually Roland Cassard's, and it can be seen two more times: when Roland visits the umbrella shop to give Ms. Emery the money for her pearl necklace and, again, as the wedding car. The license plate is the same and can be seen in this latter scene and in the very first.
Roland tells Genevieve's mother he once loved a woman named "Lola." Lola (1961) is a Jacques Demy film from 1961, in which Marc Michel plays the same character of Roland.
Catherine Deneuve was only 19 when this movie was made. She turned 20 a couple of days after filming ended.
Director Damien Chazelle cites this film as a principal source of inspiration for his Oscar-winning La La Land (2016). It's also his all-time favorite film.