City of Men(2008)

Growing up in a culture dictated by violence and run by street gangs, teenagers Acerola and Laranjinha have become close as brothers. With their eighteenth birthdays fast approaching, Laranjinha sets out to find the father he never met, while Acerola struggles to raise his own young son. But when they suddenly find themselves on opposite sides of a gang war, the lifelong friends are forced to confront a shocking secret from their shared past.