I just watched it, it's really good. Lots of comic almost Charlie Chaplin style acting, especially the opening scene.
But also later as well, there's a great scene where he tears a room apart.
Some good eating and drinking scenes.
A nearly mute female lead.
Lots of scenes in the bathroom as well.
Doesn't reach any depth but there's something about it.
It's the same guy who is in les valseuses ("going places") which I used go love.
It feels offbeat to watch it now, but totally normal at the time? Also had me thinking about how Jim Thompson is good cos he uses so many specifics and all the details really matter, people's jobs, minor characters etc.
And also how this kind of novel would not be written now, nor would a film be made of it, as we are so cashless.