Sorry but I agree with Tao, Dan looks like he's either smiling or crying of happiness in that pic. I'd be hypocrite to say that it moved me to tears or any strong emotion.
But, okay, my opinion is based only on this particular pic.
This pic might not even come from the exact scene that makes the final cut of the film. So let's give him a chance.. let's just wait and see the entire movie first, and watch how he actually acts out this depressing scene -- before passing judgment. I wont say yet that Dan's acting (especially his crying) hasnt improved since PoA.
No pressure Dan