Oppenheimer is the 1st movie since Insomnia where Michael Caine doesn't appear and the 1st movie where Cillian Murphy appears without Michael Caine. Michael Caine appeared in 8 of the 12 movies directed by Christopher Nolan (Batman Begins, The Prestige, The Dark Knight, Inception, The Dark Knight Rises, Interstellar, Dunkirk and Tenet) and they were all consecutive. Cillian Murphy appeared in 6 of the 12 movies (Batman Begins, The Dark Knight, Inception, The Dark Knight Rises, Dunkirk and Oppenheimer). Michael Caine appeared in 5 of the 6 movies where Cillian Murphy appeared