Anna's dream seems to be an epilog to this and was actually part of its script (both films written and directed by Ingmar Bergman and starring Liv Ullmann and Max von Sydow)
Movie is mentioned.
Discussion; interviews with Liv Ullmann, Ingmar Bergman
Mentioned in dialogue.
During several scenes in the film the poster can be seen.
As part of Max von Sydow's filmography
Subject of documentary
Clips shown and movie discussed.