It all begins with the blackness of coal, the fire in the iron furnace, and the silent rhythm of human labor. As massive hulls rise along the gray shores of the town of Barrow-in-Furness, Paul Rotha captures this industrial ritual with his camera from a cool, detached perspective. The sound of hammers striking steel fills the air as a colossal, titanic silhouette—destined to meet the ocean—is built piece by piece. One of the purest examples of the documentary form, this film lays bare the ancient and grueling partnership between machine and man—not by rationalizing it, but simply by evoking it.