film industry vs motion picture

film industry

noun
  • The technological and commercial institutions of filmmaking. 

motion picture

noun
  • A movie. 

  • A sequence of images depicting people or objects in motion, preserved on a recording medium and capable of being projected for viewing. 

name
  • a sequence of images that cause the illusion of motion 

How often have the words film industry and motion picture occurred in a corpus of books? (source: Google Ngram Viewer )