Wow, I wasn't fast enough
here in the land of poets and thinkers, the movie was shown in a few cinemas starting with the release date, made the first weekend and then completely disappeared.
Anyway, the marketing concept appears to have involved a twofold operation, with a longer and "uncut" version to be shown on TV, so lookout for "Die Männer der Emden" in future programmes. I could imagine there will be an english speaking version at least on DVD.