...kinda amazing to think what power the script writers have on a big movie like that...so many people watching it....
You are right, they really have power. Just imagine: how many Belarusian movies about World War II did you watch? Maybe, 0. At the same time my friends and I watched the Western movies like "Saving of private Ryan" (don't remember the exact title) and so on.
It doesn't mean, that your movies are really better, than from my country. No. Just Belarusian movies will not have chance to be showed on your screens. And movie like "Avatar" is popular due to PR, special effects and belief in "a Western movie with an excellent quality".