For something with so much hysterical shrieking, It's A Mad, Mad, Mad, Mad World has aged amazingly well. There is some mindboggling physical comedy which is eternally funny, and these ancient and hilarious comedians are doing some extremely hectic shit. Watching Jonathan Winters literally demolish a service station with his fury is a sight to behold, and is rightfully one of the great slapstick scenes of all time.
But there's still nothing in the film that beats Barrie Chase and her super intense twisting around Sylvester's living room. Chase is the last surviving member of the main cast, according to the internet, and I'm sure that longevity can be partly attributed to her absolute commitment to the twist, in the face of all distractions.
That's art, that is.