Trivia

Robert De Niro learned all of his French dialogue phonetically.

Robert De Niro flew in on the Concorde the night before shooting his scene; he was only on the set for one day.

While Marcello Mastroianni discusses the acquisition of Simon's prints, Simon mentions "Hellzapoppin'," a 1941 pastiche of vaudeville-style sketches by the comedy team Olsen & Johnson. Through the window behind Mastroianni and Simon, a man is seen carrying the front end of an extremely long ladder. When the ladder finally reaches its end, the same man is carrying the back end. This is a classic Olsen & Johnson gag from both the film "Hellzapoppin'" and the stage act that spawned it.

In Robert De Niro's scene, his character falls into the lake. He was doubled by another actor for that fall.

Writer/Director Agnès Varda supervised a 2K digital restoration of the film in 2014, made by the Éclair laboratory from the original negative.