Zentropa

I am posting my after thoughts on Zentropa since I now have access to post!

Although I was confused on some scenes, this movie just gave me chills.
I felt like none of the characters were on their right mind set.
Kathrina says to Kessler that in the Bible God tells us to either be hot or cold. Not being either is a sin.
Throughout most of the film, Kessler was kind of in the middle, not really being on a specific side.
This eventually led to his destruction. But I thought, what do you do if you feel like both sides are wrong? I felt like what von Trier was trying to say was that this is the aftermath of war; ultimate destruction that blurs the line between right and wrong.

Also, the way he chose to make the in black and white showed the war's darkness and oppression.
I felt like I was oppressed the whole time I was watching it, from the narrator's voice that seemed to force me to places, and usage of water that even made me hard to breath sometimes. The raining scene in the beginning and the drowning underwater scene at the end seemed to make even the air around me dense.

Going on to some questions I had:
On the scene where Kathrina says "I am a different person in the day and night" (something along those line) what did she mean?

Also, before Kathrina's father committed suicide, he says "Kathrina!" Does that mean he knew Kathrina was the one who was sending him threat letters? If not, why did he call out her name before his death?