After checking that is very little real video footage is on Paul Keres. I made effort and put mixtape of videos i could find about this great men. Behind video in russian there is interviews of chess legend like Spassky,Averbach,Tal,Korchnoj who personally knew Keres and tells their memories about him.
Manny chess historians knows well there is very little possibility anybody could beat Keres 4 game in a row like ale Botwinnik did in 1948 versus peak 32 old Paul Keres.
I found this comments left by unknown person when i did my research for this video:
* I know exactly why Keres didn't become the chess champion . Keres had to let Botvinnik become the world chess champion, because he was threatened that his wife and children would be sent to Siberia (if he wins) . Keres wifes sister lived with her family in the United States and they had exchanged letters - it was a big crime for the commies - they wanted to scare Paul Keres in such way before tournament. I know this because Keres' sister was my relative and we visited Maria Keres with her daughter somewhere around 2000 - I don't remember the exact year.....It was already our country, the Estonia*