Ok, French movies are 90% boring and plotless. This one is also stupid. In my reviews I assigned high scores to many films with Daniel Auteil or others like comedies, where French are masters.
But this one not. I would have rated 0 or max 1.
I assigned a 2 only for a quick concert they played at very courageous speed. More or less the unique 30-40 seconds worth to watch.
The rest is pathetic.