I wonder what the makers of Zero Dark Thirty did to keep it compelling. I haven't seen the movie myself. The real-life mission resulted in only one light injury

I wonder what the makers of Zero Dark Thirty did to keep it compelling. I haven't seen the movie myself. The real-life mission resulted in only one light injury among the Americans and involved zero fist fights. Osama bin Laden himself was killed before he could fire a single shot or throw a punch.