short film, vol 4. Geries Game

Hello,
Now time for a change and an "old classic" as it were, a pixar short film called "Geris Game".
the idea is simple, nice, yet has a quite sad undertone to the entire thing. By having an old man playing chess alone in the park by himself is an interesting thing to watch, "if its sped up in time such as the film" yet also seems like a sad thing as well  leaving you to think, why is he playing alone is he the only person he knows left alive, or you could go deeper and ask, what if he is actually the last man on earth.
But anyway, this short film is interesting with the use of only one character taking the roles of two characters  the only change being the white chess player wearing glasses and the black chess player not having glasses. But with having both characters in shot may be confusing but dose add an effect making you wonder if there are actually two people there, when you clearly see Geri playing by himself at the beginning. Yet finaly showing you at the end of the clip by zooming out showing geri alone playing this game of chess by himself.
Here is the clip, and see if you can spot the "pixar" plug