It's not a movie based on a game, but it's definitely about games.
In my personal opinion? It would be perfectly fine.
Basically, the rule is "if it's based on a video game, it can be added." The movie itself is not based on any particular video game, but it
did have Nintendo of America's blessing and featured their products prominently. And by that I mean that it was a 90 minute ad for their stuff.
And no, this doesn't mean you can add
any movie that has a scene with a video game. Stuff like Gamer and Grandma's Boy is still out since they feature fictional games. But, documentaries that talk about gaming topics are fine.
This is my personal opinion, but if the other admins disagree then it shouldn't be here.