Because of Winn-Dixie (2005):
At first glance, Miss Franny seems to be a spinster librarian, but we soon see her as a warm, friendly kindred spirit to the film’s heroine.
The Human Comedy (1943):
There is a brief, but heartwarming, scene in which the elderly librarian shares her love of books to two young boys.
Lorenzo’s Oil (1992):
One of the best reference interviews on film—an academic librarian calms an irritable patron without patronizing him.
The Music Man (1962):
Not one of my personal favorites (sorry, Robert Preston fans), but it is a good film notable for its influence in cementing librarians in popular culture.
The Substitute (1996):
A school librarian stands up to hoodlums—and backs it up by packing a pistol! Probably not the most family-friendly reel librarian (she’s got a potty mouth, as well) but one of the most memorable!