Sometime in the mid-90s, my dad showed me this clay-animated short. It involved this creature at a movie theater trying to get a spot to see the movie. But with every seat, someones blocking his way. One guy keeps stretching his neck high to the ceiling. Another fat creature turned around and puked on him. At the end, he's running around as other people are, and it ends with all of them collided in a pile as he's on top.
Not sure of anything else about it. I *think* it may have been a short before another movie, but it was such a long time ago I just can't remember. Been looking for this for years and any help would be appreciated.