This film is nonsense. When film tries to be art and it is pure utter nonsense, it would need an immense amount of style to be good. This film has great style, but not enough to save it from the negative aspects, and this tips it over to the boredom scale.
There were some great scenes, like the panorama shot in continuity of Belmondo running towards Anna Karina and then her on the balcony looking in a perpendicular direction, Anna looking directly at the "audience" towards the back of the car, and whenever Anna is in a sailor hat.
But not enough. When something is all style, no substance and no structure, it would need more than just a few good scenes in 2 hours.
My favorite Godard film is Alphaville instead.