The film is a sociological study of youth in France in the 60s. The alternative title to this film is "The Children of Marx and Coca-Cola".
Got interested in the film after reading Pauline Kael's review. Liked how the director showed how the young French people at that time reacted in different scenarios! Especially liked how the main protagonist tried to ask Madeleine out for a date, how his friend tried to learn more about Madeleine's friend and the interview with "Miss 19"! The teeny bopper songs featured in the film were quite nice too!
Internet Movie Database Link