First of all, why would I want to declare myself a fan of something I haven’t even seen yet? Secondly, no Hollywood, I will not advertise your product to everyone on my news-feed. Because that’s basically what it boils down to: they are asking you to promote their movie for them, in exchange for “exclusive content”. I refuse.
In my defense, they said they’ll release a new trailer once it hits 100,000 fans. And hey, it looks really good.