The acting in this movie was incredible! Robert DeNiro can play just about any role and he is as good as ever. The leading characters did a great job too. I can't image anyone playing the part of someone with a mental disorder, yet in this movie has two actors that do it superbly. I don't want to say anymore because I don't want to ruin the story for those who haven't seen it. I rarely give any movie five stars but this one deserves it.