Mosaic -- Film Description:
"Mosaic, by Norman McLaren and Evelyn Lambart, is a picture of unusual movement, color and sound, created in an unusual way. It is an example of 'op' art in film, a play on the retina of the eye. The basis of the film is a single tiny square that divides, eventually forming a colorful mosaic to the animators' musical orchestration."
-- National Film Board of Canada

Source:
National Film Board of Canada. "NFB -- Mosaic/Mosaïque." National Film Board of Canada. http://onf-nfb.gc.ca/en/our-collection/?idfilm=10561.