Shown tonight on UK Channel 5: (Need to be or appear to be in the UK for the catch-up link to work)
http://www.channel5.com/shows/revealed/episodes/nazi-titanic-revealed
Not a bad show, tells the story and some background information on the Nazi Propaganda film trying to show a German 1st officer as a hero over the British fat cats trying to make money no matter the cost of ordinary peoples lives.
It also goes, some bit, in to the history of those involved including the gruesome fate of SS Cap Arcona which was used in the filming and why Goebbels eventually banned the film.