The Wolf Girl (1974)

Seeking vengeance, a man is directed by a sorcerer to cut his child out of his pregnant wife so he can create a miraculous 'ghost child'. Overhearing this conversation, his wife flees into the forest where she ends up giving birth to twins with the help of a kindly woman living there. Afraid her husband is chasing her, the wife flees further into the forest with just one of her children, but dies when she falls off a cliff after being chased by wolves. The wolves raise the child as one of their own, whilst her twin sister is raised by the kindly woman living in the forest.

Unfortunately the movie The Wolf Girl is not yet available on HBO Max.