This, of course, is a great movie and the DVD also has a really interesting interview with Daniel Clauchy, the actor who plays Paulo, talking about the experience of making this film and working with Melville. Also, an interesting interview with Melville excerpted in the DVD booklet. Not to be a brat, but it's worth nothing that, although one of the other reviewers writes the budget for this film was 10X that of other films of the time, it is actually the opposite--Melville shot this for about 18 million (old) francs, about a tenth of what other feature films cost at that time. He used his own script, unknown actors--famously discovering 15 yr old Isabelle Corey walking down the street--and only a small crew, cutting as many costs as possible. The film, however, looks big budget--gorgeous shots of Montmartre, Pigalle, and Parisian nightlife and a beautifully slick, noir style. Isabelle Corey is wonderful, but also see Guy Decomble from 400 Blows as the police inspector.
It's just a great movie: it's meticulously crafted, there's nothing falsely intellectual about it, and it's interesting to see how much influence this has had on all the heist films that have followed.