Books in the library are shelved using the LC (Library of Congress) Classification System.
The list below gives you a general idea where some of the books on Films are shelved.
PN1993.5.U6 - PN1993.5.U8: Motion Pictures History (United States)
PN1995.6: Motion Pictures and Censorship
PN1995.7: Pictures and sound / talking pictures
PN1995.75: Silent film
PN1995.9.G3: Gangster films (other film genres/topics also shelved in PN1995.9)
PN1998 - PN1998.3: Biographies and scholarship on individuals (mostly directors)
PN1999: Motion picture studios and corporations
PN2287: Biographies of actors/actresses
TR845 - TR899: Cinematography (includes projection, Technicolor and color cinematography, special effects)
NC1320 - NC1776: Cartooning and Animation
NA6845 - NA6846: Motion picture theaters