emotional response we experience from colors is due to nature or nurture (or both), the fact still remains that it does occur and using colors as a means to convey a message does work. (Just ask any marketing agency.)
I Am Legend (2007) Will Smith, Alice Braga. When a terrible virus spreads across the planet and turns the human race into bloodthirsty mutants, civilization's last hope for survival lies with scientist Robert Neville, the only person unaffected by the epidemic...9a
Amelie (2001). "On September 3rd 1973, at 6:28pm and 32 seconds, a bluebottle fly capable of 14,670 wing beats a minute landed on Rue St Vincent, Montmartre. At the same moment, on a restaurant terrace nearby, the wind magically made two glasses dance unseen on a tablecloth..."