When Claude Véga appears, he impersonates Delphine Seyrig and quotes a line from Last Year at Marienbad (1961). He also quotes from a line that Seyrig spoke in the previous Antoine Doinel film, Stolen Kisses (1968).
Last Year at Marienbad (1961) is not the only film to get a tribute in this movie. When Antoine Doinel is walking in a street, a big ad of John Ford's "Les Cheyennes" (Cheyenne Autumn (1964)) is seen behind him. Also, when Doinel is at a train station, Jacques Tati (in fact, someone impersonating him) shows up and offers some seconds of his unmistakable marvelous humor.
Antoine Doinel (Jean-Pierre Léaud) makes a phone call at a pay phone and asks to speak to someone named Eustache. When Eustache comes to the phone, Antoine calls him Jean. Jean Eustache would direct Leaud in The Mother and the Whore (1973) the next year.
The series of five films has been named "The Adventures of Antoine Doinel". They consist of the following, in order:
François Truffaut's directorial debut The 400 Blows (1959), which introduces us to the 14-year-old Doinel, a neglected, troubled Parisian boy. Doinel's second appearance is in the short Antoine and Colette (1962), which was part of the anthology film Love at Twenty (1962). In it, Doinel, now 17 years old, becomes obsessed with Colette, a music student, but she only wants to be friends. The third installment, Stolen Kisses (1968), shows a more mature Doinel, after a dishonorable military discharge, in a two unstable romantic relationships with Christine and Fabienne. In the fourth foray, Bed & Board (1970), Doinel and Christine are married, but he suddenly becomes obsessed with a young Japanese woman. Doinel's final adventure comes to a close in Love on the Run (1979), where his romantic attentions shift from his ex-wife Christine to record seller Sabine.
One of the composer portraits decorating the Doinels' front room is actually a portrait of the actor Oskar Werner dressed as Wolfgang Amadeus Mozart for a play. François Truffaut directed Werner in two films, Jules and Jim (1962) and Fahrenheit 451 (1966).