See Diane Baker Discuss Mirage in 2011
I found her on YouTube. Its an interview on a stage after a showing of "Mirage." This year. She looks pretty good. A lot of the interview just covers the plot of the movie, but some key things are discussed:
--How she was made up and filmed to look older so as to match the older Gregory Peck better.
-- How Angie Dickinson lost this role to Baker and jokingly bugged her about that.
--- How she wishes she could play the character "deeper."
-- (From the male interviewer) How Walter Matthau is "clearly" not really playing his dead body on the desk in the office (I've always wondered about that myself.)
Its a nifty interview if you like "Mirage". I could only find Part One.