A script is just a blueprint; the language itself isn't important. Plus, what you write and what ends up in a movie or on television might be totally different--it's out of the author's control. But a work of fiction is a finished work.
劇本只是一個藍圖，文字本身並不重要，而且你寫的東西與將來電影或電視呈現的，可能是完全不同的東西，作者無法掌控。