"Based on a true story" is a come-on, the aesthetic equivalent of "no loan request refused." For, at best, the creator has fashioned a film based on his understanding of, interpretation of, and reduction of the report of an actual occurrence.
David MametThe realization that I came to is that each citizen for himself or herself understands the economics, which is, "I better make more than I spend and I better put something aside for a rainy day, and I want to get a good idea about what to do with the surplus so that perhaps it can grow while I'm sleeping." And that that's capitalism. Everybody practices it, but half of the country - those on the left - deny that it's true.
David Mamet