Just a minor point but I've just been watching this film on French TV (Channel D17 on 16/01/2014) and it's actually set in the early '60s, not the '50s as LeonStyloroy says.
The family's Peugeot 404 wasn't introduced until 1960 and there's also a '64 Panhard PL17 in the movie but the red 1970 Simca 1000 may be an anachronism.
However, the Jacques Dutronc track one of the characters was listening to ("Les Play Boys"?) was released in 1966 on his first (self titled) album.
Irrespective of any of that, it's a gem of a film even if you see it in French without English subtitles.
The family's Peugeot 404 wasn't introduced until 1960 and there's also a '64 Panhard PL17 in the movie but the red 1970 Simca 1000 may be an anachronism.
However, the Jacques Dutronc track one of the characters was listening to ("Les Play Boys"?) was released in 1966 on his first (self titled) album.
Irrespective of any of that, it's a gem of a film even if you see it in French without English subtitles.