The danger of films based on true stories, is that sometimes people take it for the whole truth. This is often not the case, as movies ultimately have to engage and tell a story within a span of a few hours. Thus the aertistic license being waved.
That said, there are plenty of dramatisation that has done justice to real-life. And when it comes to a serious topic like terrorism, it is very important to paint an accurate picture, so as not to make the title seem political or manipulative in nature.

Hotel Mumbai has done an incredible job of capturing the essential qualities of the incidents that took place in 2008, and rendered a balanced account of the sacrifices the staff made for their guests in the luxury hotel.
I compared the truth and the alterations and came up with a piece for Catchplay. Enjoy!
First published: Catchplay