I know this is a silly rant, but my (US) DVD just arrived and I looked this up on IMDb:
Original Title: Day Night Day Night
French Title: Jour nuit, jour nuit
Greek Title: Mera nytha mera nytha
German Title: ?
If you think it is "Tag Nacht Tag Nacht" you are wrong. Can't have that repetition. Must correct the poor grammar of the filmmaker. So the German title is "Zwei Tage, zwei Nächte" (2 Days, 2 Nights).
Argh.