Interesting videos. The 'dashboard' paneling looks a bit modern, heh. Somewhat connected, here's a youtube version of an old WWII training film for IL2 pilots, which I think dates from 1943:
I downloaded the thing from aviapedia I think (music at the start and some other obviously extraneous things not part of the original incidentally) where I think I also found a scanned 1942 IL2 operator manual. Happy to upload either file if you can't find them elsewhere. Now, if only I understood Russian...