Yep, you are overlooking a few things. Ayn Rand was a historical figure - she is no longer even alive! She was born all the way back in 1905, and died in 1982, before the internet was even around.
Where did I say she wasn't? I said I don't pay much attention to her for same reason as why I don't pay attention to the crackpots who post videos on YouTube. Life is too short.
Her philosophy of objectionism advocates, among other things, self-interest as being morally correct. Hence, the irony of the movie producers asking for volunteers!
I think you missed my point. As far as I understood, her issue with volunteers was that they were working because they felt they owed the rest of humanity something, or cause they felt guilty for having more than other people. Volunteering to help make a movie isn't something you do cause you want other people to be able to see the movie for the good of humanity. You do it because you want to see the movie.
From what little I understood of objectivism it isn't out of line with her beliefs for someone to persuade reasonable people to give up their time in return for getting something they want.
Now it's possible I've misunderstood something because, as I've said, I don't pay objectivism much attention.