Maybe the german speaking guys are interested in what Buchheim said about Petersen's movie. I just found this:
http://www.cs.uni-magdeburg.de/~jung...ot/inhalt.html (down, under "Kommentar")
The title of this text is "Die Wahrheit blieb auf Tauchstation" which can be translated as "The truth staid submerged". Maybe I find the time to translate it completely sometime.