It was already somewhat well-known that Jean Aurenche had written, with assistance from Bost, a cinematic adaptation of the Bernanos novel which had, in turn, been rejected by the novelist. Many of Truffaut's post-directorial writings would consist of prefaces, forewords, or comments to collections of writings by Andr Bazin, edited by others or Truffaut himself. He has further noted that our sympathies in regard to the film are affected by the young age of the main character. Bazin's example and Truffaut's frequent recollections of it may have played an important role in Truffaut's growth, even after Bazin's passing. Truffaut's films are often bittersweet, mixing the light and the dark, sadness and humor.
Obsession is a frequent theme or subtheme.
However, much of Truffaut's later work can be considered as highly appreciative of Bazin. Mentorship, teaching, initiation, and people who show compassion for persons who are outside or at the margin of the mainstream are frequently shown in a positive light. Much more can and will be said in regard to Bazin and Truffaut.