Detonation(1966)

"One extraordinary audio-visual event is the face of a girl apparently enjoying orgasm while on the soundtrack we hear a horse-race announcer. Later a microscopic close-up of a lizard's skin is contrasted with a girl's hand in a net glove... This is an impressive movie, as much for what it reveals about ourselves, as about Linder." - Gene Youngblood, L.A. Free Press, May 24, 1968