Well if we're posting links to documentaries here one from the BBC about Tetris. The Tengen vs Nintendo suit comes up. I haven't watched it in a while but IIRC the editing makes the Tengen guys look like that had some really bad luck thinking they had a legit license and it also makes Nintendo seem like a bunch of jerks for being so mean about it, as if there was no way to figure out any kind of mutually beneficial outcome. Also IIRC Tengen's version is considered better than Nintendo's
https://www.youtube.com/watch?v=6ohCy4ktA5w