Watch Link Span for Free: How to Stream the Movie Online at 123Movies. . Twenty-four hours in the story of the British Railways Channel ferryboats, the 'link spans' directly joining the roads and railways of Britain with those of France and all the Continent. The Lord Warden laden with an assortment of road vehicles from Dover, and the Night Ferry from Newhaven carrying passengers bound for Paris, Vienna or Rome are two of the ferries illustrated in this film; and freight is not forgotten.