References to Other Truffaut Films
Early in the film Doinel can seen reading a French translation of the 1947 William Irish (Cornell Woolrich) novel Waltz into Darkness. This novel would be the source of Truffaut's next film, Mississippi Mermaid.
The character Colette Tazzi and her husband Albert make a brief cameo appearance. She chides Doinel for not contacting her, saying he didn't used to be "afraid of the telephone." This is a reference to the plot of the 1962 short Antoine and Colette.

Critical Reaction
Stolen Kisses was well-reviewed by critics all over the world. In an enthusiastic article from the New York Times (March 4, 1969) Vincent Canby comments:

With what can only be described as cinematic grace, Truffaut's point of view slips in and out of Antoine so that something that on the surface looks like a conventional movie eventually becomes as fully and carefully populated as a Balzac novel. There is not a silly or superfluous incident, character, or camera angle in the movie. Truffaut is the star of the film, always in control, whether the movie is ranging into the area of slapstick, lyrical romance or touching lightly on DeGaulle's France (a student demonstration on the TV screen). His love of old movies is reflected in plot devices (overheard conversations), incidental action (two children walking out of the shoe store wearing Laurel and Hardy masks), and in the score, which takes Charles Trenet's 1943 song, known here as "I Wish You Love," and turns it into a joyous motif.

Source : Wikipedia