François Truffaut's first film to be released on the Blu-Ray Disc format.
Juvenal (Decimus Iunius Iuvenalis) was a Roman satiric poet of the 1st and 2nd centuries AD.
All spoken lines in the film are dubbed over again by the actors themselves, save for a few minor and trivial parts. For instance, during the last scene, the sound of Antoine's footsteps was added during editing - the truck that the camera rested upon produced too much noise. Shooting on the streets of Paris, as many films of the French New Wave did, was often hectic and re-dubbing everything allowed François Truffaut to not have to worry about lugging bulky and expensive sound equipment around, and more importantly he would not have to worry about a street scene having too much background noise. This made shooting faster and easier.
All the young actors who unsuccessfully auditioned for the role of Antoine were used in the classroom scenes.
Dedicated to film theorist André Bazin.
So pleased with Jean-Pierre Léaud and his screen test (an informal conversation with the film's director being off-camera), François Truffaut doctored it into the finished film by using fade-outs and substituting his voice with off-camera female psychiatrist's voice.
The English title of the movie "400 Blows" is a gross misinterpretation of the original title. The Finnish and Swedish translations of the title, roughly translatable to "400 practical jokes" are closer to the original meaning, albeit not perfect. The original title stems from the French expression "Faire les quatre cents coups", meaning "to live a wild life", as the main character does. Literal translation of the expression would be "to do the 400 dirty tricks".
The names of two Frenchmen noted for work in film - 'Leo Joannon' (director) and Tommy Desserre (composer) - are seen on boards outside theatres during the film.
The poem written on the board is 'Épitaphe Pour Un Lièvre' by Jean Richepin. It is an Alexandrine poem i.e. comprised of lines of twelve syllables, typical of modern French poetry.
The title of the film comes from the French idiom "faire les quatre cents coups", meaning "to raise hell".
When Antoine and Rene are suspended from school, they go gallivanting around the town. At one point they pass a wall of posters and flyers, and they pull off a picture of a woman. The woman is Harriet Andersson in a shot from Ingmar Bergman's Monika, also about two young lovers who ran away from home to "live their own life."
When Antoine's father finally nodded to the cinema business, realizing it is Rivette's "Paris nous appartient", he said: "Si c'est un complot..." And a 'complot' (conspiracy), really, is the central issue of the Rivette's film.
François Truffaut:
is seen riding next to Antoine in the centrifuge ride at the fair, and can then be seen smoking a cigarette just outside the ride.