A Journey to Avebury - an early Derek Jarman Super 8 film from 1971 (via You Tube). Another addition to the hippy-pagan-folk landscape aesthetic of the time, complementing the contemporary The Children of the Stones/ The Owl Service/ Penda's Fen oeuvre. With a nicely judged soundtrack by Curve, though I think John Martyn's Small Hours would fit even better.
Thanks to the web site of the fantastic Little Toller Books for alerting me to this video.