Les bibites de Chromagnon -- Film Description:
"Children will delight in this introduction to primary colours and their combinations—an animated film in which little elf-like creatures make all the discoveries. They emerge from three circles painted red, yellow and blue. When they venture into a circle of another colour they find that they, too, change colour. Their every movement and posture is designed to convince and amuse."
-- National Film Board of Canada

Source:
National Film Board of Canada. "NFB -- The Little Men of Chromagnon/Les bibites de Chromagnon." National Film Board of Canada. http://onf-nfb.gc.ca/en/our-collection/?idfilm=11030.