In 1944, dancer, photographer, poet, artist, daughter of psychiatrist, self promoter, and film maker Maya Deren (born Eleanora Derenkowsky) made her second film, At Land. I believe the first minute of her 15 minute experimental surrealist film, about preserving ones self identity, influenced Madonna and Herb Ritts for Cherish.
The parallels between Maya and Madonna are interesting for the cerebral Madonna fan and it's not a far stretch to see why Madonna was attracted to this defiant spirit and her experimental work.
Narcissism, mirrors, choreography, self portraiture, movement, and identity are themes that not only run through At Land but in much of Maya's work.
If you get the chance, watch the wonderful documentary of Maya's life, In the Mirror of Maya Deren.
Here is the first minute of At Land.