Val Lewton initially resisted working with Boris Karloff because he didn't want to make a "monster movie". However, when they did work together on The Body Snatcher (1945), they developed a mutual respect and friendship. Both men knew that they had made a good film outside the bounds of the "monster movie" genre.
The podcast series 'The Secret History Of Hollywood' is entirely about Val Lewton; it does not only handle his movie-making life but also his private life. The series handles all of Lewton's relations to other producers, studios, studio owners, actors, writers, and everything in-between.
Orson Welles' voice is heard narrating the trailer of Citizen Kane (1941) as a brief clip of it is shown.