Rock star cast, great story....HORRIBLE movie. The movie left you without many details. I think they were trying more for a "simulation" for the viewers vs. a movie for entertainment value.
The simulation aspect would be a 3 or 4 stars. The entertainment value was 0. Can we get our time back?
I'm not sure why the Obamas produced this. Their inexperience shows in the total lack of entertainment value. Apparently, Denzel Washington started filming the role that Ali played. Denzel quit because of how bad the story was.
Advice: Find a new director. Co-produce with an experienced producer, and try again. The actors and story premise have legs. This version of the story did not.