Early War History Overwiev

The start of World War 2 (as u all know) began from Germany invading Poland but with secret deal with Russia in 1939 September 1st. Poland was suddenly invaded by two powerfull nations and this has had to be not left behind in GWX map. As I rememeber almost every city of Poland in GWX after occupacion is in the hands of Germany, but some citys had to belong to Russia ?

Corect me if I'm wrong on this pls..

I'm just watching a movie right now called: Katyn
And there is showned how Germany and Russia are sharing occupied citys.