She's another one who always looked and sounded the same whether she was 50 or 90. She's still playing the type of roles she played in The Manchurian Candidate. They could have gotten her to reprise the part for the politically correct 2004 remake and nobody would notice any difference from her appearance in the 1962 movie.
She’s a wonderful actress. The first time I recall seeing her was in “The Court Jester”.
https://www.imdb.com/title/tt0049096/fullcredits/?ref_=tt_ov_st_sm