If The 400 Blows was “very French”, and it is considered to be, Francois Truffaut’s follow up was meant to be “very American” and really it’s the most American of things: the mashup. It’s a New Wave crime comedy based on a Noir novel and the tonal shifts! Oh boy, the tonal shifts! That is to say it is not “American” in the same way that The 400 Blows is “French”. It’s a bunch of American stereotypical elements rolled into one silly film — a “grab bag” as Truffaut himself describes it.