I recall an interview in the last five years.
It was on the occasion of a mini-series with prominent actresses
portraying prominent actresses from an earlier generation.
"Feud," was that the name of it?
Joan Crawford versus Bette Davis,
and in supporting-role status, Olivia de Havilland.
Of course, this was Kirk Douglas's generation.

It happens that the actress who played de Havilland,
Catherine Zeta Jones, is Kirk Douglas's daughter-in-law.
She was interviewed, and she volunteered
the conversation she had with Kirk Douglas himself
about this mini-series film that she was in --
and about the characters in the film.

SiriusXM Town Hall discussion