Yes, 'The Banner of Heaven' is based on a true story. It delves into real - life events and the complex issues within a particular religious community. The story is often shocking and thought - provoking as it reveals the darker aspects that can be hidden within such groups.
It's a mix. The core of the story has roots in truth, but for the sake of entertainment and storytelling, certain aspects could be embellished or adapted.
It's most probably not a true story. Usually, such works draw from a combination of fictional concepts and maybe some loosely inspired events or themes, but not a direct account of reality.
In my opinion, 'Banner of Heaven' is not based on a true story. It seems to be a creation of the author's imagination with no direct ties to real-life happenings.
It is indeed a true story. The book and subsequent adaptations draw from factual accounts and real-life circumstances to present a compelling narrative.