Do not waste your money on this one. Rotten Tomatoes gave it 85%. Its recycled TV cop show fare. Cops good, drug lords bad, drug war futile. Very professionally done, works the emotions well, but overall a series of clichés. Written and directed by the Training Day writer David Ayer. Its disappointing to see him turn to manipulation instead of inspiration. IMHO his directing does not match his great writing to date. If you can see it for free, worth doing.
Two point six stars.