Roberta,
 
Not sure how to read "favorable," but you might consider RUBY AND RATA
(1990) by Gaylene Preston, featuring NZ's equivalent of Jessica Tandy.  The
character in question is pretty resourceful yet not entirely pleasant.
Nice film.
 
Harriet
 
Dr Harriet Margolis
Department of Theatre & Film
Victoria University of Wellington
P.O.Box 600 Wellington, New Zealand.
Telephone 64-4 4715359,  Facsimile 64-4 4955090