This is a favorite, one I've posted before, but let's trot it out again, shall we? Well, I'm doing it anyway.
Obviously this is some sort of crude vaudeville act that has been filmed with a still camera. The dancers are almost out of frame for most of it, and a man leaps in to remove chairs and other props, something you don't see in too many movies these days. But the most remarkable feature of this, which of course I have giffed in three speeds (small, medium and large), is the mugging at the end, in which the pig shows off all the technical marvels of his facial features, a tongue that sticks out and waves, nasty-looking fangs, etc. I'm not sure how the guy in the suit managed all this, but you will notice most of it took place during a head shot at the end. Keep your eye on the pig's neck, and you will plainly see hands working the strings and levers. As if it needed to be any creepier.
And now, for your enjoyment and edification, The Director's Cut by Wes Craven, a. k. a. A Nightmare on Pig Street. The fun begins at 3:52!