I saw it yesterday, and liked it a lot. It's a sort of film that Hollywood rarely makes these days. It echoes the social consciousness films of the 30's, and has some Noirish elements as well. I did notice a couple of verbal expressions that I think are probably anachronistic, but otherwise I found the recreation of the era to be well done.
In the beginning, it says "A true story." At the close of the credits, it says (pretty close) 'Some roles composited or invented, some (elements) fabricated.' I don't hold this against JMS. Any film like this has to invent dialog, and condense the facts. But, it does leave it open how much is true. One can't say that the film has the traditional happy ending, but there are some happy outcomes. I can't but wonder if all really happened quite that way. Very enjoyable, none the less.
Angelina Jolie is not the athletic glamor queen she usually is, but an almost frail, hosewifey type. She does a good acting job. Acting was good all around. One of my favorites was Michael Kelly as detective Lester Ybarra. His character took some REAL chances!