As a child in the 1980s we watched a VHS animated movie of a girl who lived in the country and was then called by her curiosity and magic into the forest. She ate some red fruit from trees/bushes as she proceeded into the forest. Deep in the forest she came upon a mansion/castle. At this point the movie turns abbot dark in my memory and the dialogue seemed quite sparse. I was quite young but hope to find and watch this movie again! This movie was in our VHS cabinet along with Unicorns, the Last Unicorn, and the original charlie and the Chocolate factory of this helps narrow down the dates.