If the movie is about the gruesome reality of war and the brutality and duplicity of the enemy, it will do well. If it is a blatant, Anti-American, ant-war at all costs, flick... It will flop, and Hollywood will sit there blinking wondering why Americans don't buy their crap.
I have this image in my mind of him having flashbacks to My Lai and Abu Ghreib type events over and over again.