A Colour Box (1935)

Astoundingly ahead of its time—if I didn't already know it was from 1935 I would've guessed the 60s or 70s at least. Between the high-energy music, rapid abstract patterns, and utterly mundane text about post office pricing it has the feelng of a frantic dying dream or celestial vision gone wrong(?), but don't worry, everything's okay. UPA protoplasm vibes.