A movie called The Wicker Man is well worth watching. Set on an island off Scotland's west coast, it starred Christopher Lee, Britt Ekland and Edward Woodward.
It is a drama packed full of Druidic tradition and well researched according to Margaret Bennett, who worked for the School of Scottish Studies and knows these things. For example, I had been dismissive of an English hobby horse showing up in this Scottish film, but Margaret pointed out that an ancient hobby horse had once been recovered from a Perthshire bog.
Anyway, if it's Beltane fires ye want missus, this is the pictur for you.