celluloid vs filmmaking

celluloid

noun
  • The genre of cinema; film. 

  • Any of a variety of thermoplastics created from nitrocellulose and camphor, once used as photographic film. 

filmmaking

noun
  • The manufacture of physical film. 

  • The activity of preparing edited video works, formerly principally films, whether for entertainment or other purposes. 

How often have the words celluloid and filmmaking occurred in a corpus of books? (source: Google Ngram Viewer )