 The film has several similarities in theme to George Orwells novel  "1984" and Aldous Huxleys novel "Brave New World." Marys last  name, OBrien, is possibly a reference to a character in "1984." The  windows shaped as the letter T (as in Duponts office and the  guards helmets) could be a reference to "Brave New World," where  Christian crosses have the top part cut off to form a T, in honour  of Henry Ford and the Model T automobile.