In an era of Occupy Wall Street?style rebellion against corporate greed, Marc Blitzstein's rousing 1937 battle hymn to the proletariat feels remarkably fresh and relevant today.

Set against the backdrop of a steel strike and peopled with fat-cat capitalists, brutal policemen, heroic union organizers, and a warm-hearted prostitute, "Cradle" is a powerful political document, a funny, potent satire, and an extraordinary piece of theater history.