MARC21       517     Categories of Films Note (archival) (vm) [obs.]
  Subfields: 
             $a   Different formats [obs.]
             $b   Content descriptors (R) [obs.]
             $c   Additional animation techniques (R) [obs.]

 Indic/etc.: 1st: Fiction specification [obs.]
             0 Nonfiction [obs.]
             1 Fiction [obs.]
             2nd: Undefined; contains a blank (#) [obs.]