Here are a few possibilities and explanations:
* Misremembered Name/Movie: It's possible the name or title of the movie is slightly incorrect. There were several film adaptations of the Book of Ruth, including one in 1960 starring Shirley Booth as Naomi.
* Misidentified Actress: It's also possible that you are thinking of a different actress from a different movie.
* Uncredited Role: Perhaps the actress had a small, uncredited role in a different film.
Could you please provide more details about the movie or actress you are referring to? For example, do you recall any other actors or characters in the movie? This will help me provide a more accurate answer.