motion picture vs silver screen

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 

silver screen

noun
  • A cinema screen onto which movies are projected. 

  • By extension, movies, or that which is related to movies or cinema. 

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