It’s done by and for IBM, which claims that the pixels in the commercial are individual atoms. I don’t really believe that, but the Guinness Book of Records says it’s the world’s smallest stop-action movie.
It’s by Ogilvy Mather New York.
The blog where I saw this says this is one of the ten best ads of 2014. Definitely worth visiting. (I’m old school — an ad is print, not video. Oh well.)