While a lot of historically relevant movies do strive to be accurate or to at least tell people the flicks are based on a real-life story and not necessarily wholly accurate, Madonna clearly would prefer a movie about her to highlight aspects of her life she has personally approved.
The difference between the above projects and the unauthorized Madonna movie is theoretically the audience it could attain.
I’d expect a lot of kabbalah and exercising tips in that case.
Movies are still a big deal around the world and help to inform our impressions of people in the stories that are told–especially in the stories about real-life people.