This brings to mind something I read/heard/saw a documentary/dreamed up somewhere. They did a study in languages of slaves, namely, slaves with different languages, forced together in a society. In the first generation, they would develop a vocabulary to communicate, but they had no grammar. However, the second generation would develop a complex grammar without it actually being in the language to begin with. This, maybe, is also true for the movie-industry. The first generation of movie-makers could use the vocabulary of movies, but the second developed and sued a "grammar".