I saw a French film on British TV some years ago, probably released in the period 1999-2007, the name and most details of which I cannot remember. I think it was shown as part of a series of French films, maybe including Harry, He's Here to Help, but I'm unsure.
- Some tranquil scenes at an outdoor swimming pool, possibly at a holiday camp, earlier in the film.
- A surprise attack on a person sleeping/resting in a parked car, towards the end of the film.
The latter was extremely shocking, even after earlier scenes had created an unsettling tone. The car was parked in a car park after dark, I think at a motorway/highway service/gas station. It seemed like a quiet place. All of a sudden, an assailant was smashing through the windscreen, possibly with a pickaxe or hammer or suchlike - I don't remember exactly.
I seem to recall that the film had been on general release in the cinema for a while, before being shown on TV, and had had middling to good reviews. I think it was at least partly funded by a French arts council of some kind.
I have a vague idea that the plot arc concerned a coming-of-age story against a backdrop of family trouble, but I could be mistaken.