I think I saw this movie in the theatres. It would be mid-late 70s or very early 80s and it was in color. The only scene I remember – which I think was towards the end – were 3 young girls standing high on a cliff near a house having a conversation (think the coastline because there was definitely an ocean in the background, and the day was sunny). And it seems 2 girls were nice but bullied by the 3rd girl who threw one of the other girls dolls a good ways down the cliff. This has bothered me for years – if it sounds familiar please let me know.
Maybe Don’t Torture a Duckling (1972)?
https://www.imdb.com/title/tt0069019/