I thought it was gonna be about the guy who actually made Tetris, but no they cover that in 2 minutes at the beginning and the rest of the movie is about the American copyright lawyer trying to get the rights for Nintendo.
It's literally all about how bad the USSR is and how good corporations like Nintendo are. When the American arrives in Moscow they take his passport down to an evil KGB bunker and the whole movie shifts to being tinted blue and grey.
There's literally a scene where the Russian programmer says to the American "we want to be free, we want your coca cola and Levi's jeans". If it wasn't so boring this would read as satire of American media in the Cold War.
Wow really? It sounds worse than the trailer made it out to be.
I mean the guy making Tetris isn't really that interesting, he just worked for the Soviet state software corporation and at that time it wasn't commonplace anywhere for programmers to get paid royalties. You might be able to make a story about him leaving the collapsing Soviet Union and trying to parley his invention of Tetris into a private enterprise though - first step was wrangling the million plagiarized versions floating around, second step was programming Welltris and Hattris.