Its black and white, has a simple plot and does a great job of making you realise what a hollow claim it is when a hollywood movie claims to be gritty, dark or evocative. The fact that its a french movie, featuring people you have never seen before makes it all the more tense since you can't be certain of the usual movie conventions regarding what happens to which character.
All that said, its a horrible movie - somewhat traumatic to watch in fact and it still freaks me out to think about it so I can't actually reccomend that anyone see it in good conscience.
Before going to the movie I bought some new shoes. Fair Trade in templebar are selling the "No Sweat" line of trainers and I decided to get a pair on the basis that they look like the red converse trainers I've been looking for for a while. They're comfy, if light and at 50 quid, a damned sight cheaper. Granted, they're technically knock-offs of a popular brand but since they're guaranteed made with unionised indonesian labour as opposed to the stuff thats made from babies, by babies in microwaves I'm pretty much okay with that. The soles are a bit thin and lacking arch support but thats nothing a 10 quid insole won't fix.
 I will say this though, it doesn't involve violence against women or children and no nudity is ever involved.