Daniel Lord’s work, Production Code for American Motion Pictures, illustrates and emphasises strict prohibition. The author makes sure that the American film does not embrace any decadent or immoral virtues. Instead, it supports moral values. His code efficiently controlled and regulated speech in American history. His achievement was backed by the industrial imposition of this code. Furthermore, the film consolidation focussed the power in few studios, which made them susceptible to boycotts leading to acts of self-censorship. Some leading studios relocated from New York to Hollywood and incorporated their production services, which resulted in the creation of longer and films of higher quality. The industrial consolidation