Sad movie.

It's about a young black guy named Oscar in Oakland, California, who has a girlfriend and a young daughter, and things are not great because he lost his job recently for being late for work, but he doesn't appear pessimistic.

On New Year's Eve he is on the subway with his friends and he gets into a fight. Some cops show up and things go bad. It all happens fast, then the movie is over. But you'll probably think about it for a while.