coliseum vs feature film

coliseum

noun
  • A large theatre, cinema, or stadium. 

  • A large, often circular building, for indoor sporting events, exhibitions, concerts, etc.; arena. 

feature film

noun
  • Any film produced to be shown in cinemas before being released for home viewing. 

  • The main, full-length film in a cinema program that also included a short film and often a newsreel. As of now, it plays after the trailers. 

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