I just finished Dogtooth. I found it more gripping than 127 Hours. Only paused it once, and that because I had to let a cat in (I take those kinds of risks) and didn't want to miss a subtitle. Of course, it reminded me of a Dogme 95 film. Also, perhaps oddly, 120 Days of Sodom, because it is so stylized and formal and cool while depicting some pretty disturbing events.
I especially liked that it managed to be in some ways very sweet. And, as far as the cat scene goes, I've seen way worse.
You must be happy sad, Mike.*
*I mistakenly thought Dogtooth had won the best foreign film Oscar.