This could be tough. Actress, movie, and movie its an unofficial sequel to. This movie still comes from an obscure movie but its an unofficial sequel to what well known movie.
Hint: She was in both films.
Both movies involves sociopathic behavior.
Imagine what she looked like aas a child.
So let’s see she was in both films about sociopathic behavior she would have been a child based on final hint. She looks middle aged now so the other movie would be over 25 years prior. Her hairstyle is 80s which you all know. Come on its now too easy.