Watch Brothers (1929) Official Trailer

The film depicts, in a kind of fictional documentary, the 1896 Hamburg dockworkers' strike: the workers receive meagre wages for hard work and live under miserable conditions and finally go on strike (to make matters more personal, one of the strikers has a brother who is a policeman). Even though the inspiration for the story was an event that took place in the XIX century, things had little changed by the troublesome twenties so the story had a perfect contemporary ring.