From four on your list I've seen, three would be on mine,

- Dare mo shiranai - Hirokazu Koreeda 
- Dogville - Lars von Trier
- Elephant - Gus van Sant

One I liked much (seen it again since), but wasn't that great for me
- The Dreamers - Bernardo Bertolucci

one I don't know much about
- Control Room - Jehane Noujaim

and all the others I've wanted to see since they came out (and eventually I will!).
Thanks for your contribution, looks like a list that could come from any of our members