'Boris Karloff: The Man Behind The Monster'
This is the title of a documentary film about his life currently in the post-production stage. Somehow Boris Karloff will narrate the movie himself. So presumably there are recordings of him existing telling his own life story. There are a host of people being interviewed in the film.
Among the interviewees will be Roger Corman who was associated with two of Karloff's 1960s horrors. 'The Raven' and 'The Terror.' I don't think that Caroline Munro was in any films with Karloff but has made plenty of horrors. She gives her memories. Among other who are also interviewed in the documentary are Christopher Plummer and Peter Bogdanovich and Stephanie Powers.