talkie vs walk-on

talkie

noun
  • A movie with sound, as opposed to a silent film. 

walk-on

noun
  • Such a part in a play or film. 

  • One who arrives and boards transport (such as a train or ferry) without having booked in advance. 

  • A student athlete who wants to try out for a college sports/athletic team without the benefit of a scholarship or having been recruited. 

  • An actor of a small (or "bit") part in a theatrical production or film, often without speaking lines. 

How often have the words talkie and walk-on occurred in a corpus of books? (source: Google Ngram Viewer )