The Year of the Apeshit Crazy Ape-Horse

The Year of the Apeshit Crazy Ape-Horse is just something I thought of and then discarded, never to be referred to again. Even if I wanted to write something about it, I've long since forgotten what it means. Nevertheless, it seems I have mentioned it four times throughout. Maybe you can figure out what it's about by reading one of the following...

There are four films covered by The Year of the Apeshit Crazy Ape-Horse