I've recently watched Midsommar (2019). During the summer festival, which was held during the friends visit in Sweden, we see some terrifying, brutal and definitely scary rituals. I'm speaking about these:
Throwing the oldest members of the family (or tribe) from a rock when they reach a certain age.
Blood eagle execution of those who are thought to be traitors.
Sex intercourse of young members to make baby to celebrate life
I'm not familiar with Swedish folk stories and I know that the brutality depicted in the movie is exaggerated and there is nothing like that today. But are they inspired from any specific ancient pagan folk culture?