The Watcher in the Woods (1980)
It’s Bette Davis…did you need to know more? Ok, fine. There’s also that girl from Ice Castles.
When a normal American family moves into a beautiful old English house in a wooded area, strange, paranormal appearances befall them in this interesting twist to the well-known haunted-house tale. Their daughter Jan sees, and daughter Ellie hears, the voice of a young teenage girl who mysteriously disappeared during a total solar eclipse decades before.