Kecak’s use in these soundtracks is a case of schizophonic transmogrification: the rematerialization and thorough reinvention of people and places whose voices and sounds, as inscribed on sound recordings, have been separated from their original sources of identity and meaning and resituated in entirely alien contexts—real or imaginary or somewhere in between.
This according to “The abduction of the signifying monkey chant: Schizophonic transmogrifications of Balinese kecak in Fellini’s Satyricon and the Coen Brothers’ Blood simple” by Michael Bakan (Ethnomusicology forum XVIII/1 [June 2009] pp. 83–106).
Above, a performance of kecak in Bali. Below, the Minotaur scene from Satyricon; further below, the failed abduction scene from Blood simple.