Over at the BFI Adam Scovell has an interesting roundup of megalithic monuments on screen. Not surprisingly, they tend to be British, with a distinct bias towards 1970s telly. Most of them I'm familiar with. Doctor Who's encounter with The Stones of Blood is great fun. Children of the Stones is rightly revered as a classic of children's TV. And Night of the Demon wedges in a scene at Stonehenge despite M.R. James' baffling omission of the thing in his original story.
There are also a couple of new ones on me. One is John Betjeman on Avebury in the series Discovering Britain. There's also a short Derek Jarman film called Journey to Avebury which is, not surprisingly, a bit weird.
Perhaps the barmiest of all, though, in the biker-folk-horror film Psychomania (1973), which has a great finale. It makes little sense at a rational level, but - as sometimes happens with films that are not exactly big-budget - it looks great. Oh, and Beryl Reed is in it, which will delight a lot of older Brits like me.