The movie is to dramatic representation what the book was to the manuscript. It makes available to many and at many times and places what otherwise would be restricted to a few at few times and places. The movie, like the book, is a ditto device. TV shows to 50,000,000 simultaneously. Some feel that the value of experiencing a book is diminished by being extended to many minds. This notion is always implicit in the phrases mass media, mass entertainment—useless phrases obscuring the fact that English itself is a mass medium. —Marshall McLuhan|Marshall McLuhan]] in Classroom without Walls, Explorations in Communication.