How to watch The Hobbit The Battle Of Five Armies Movie on my Iphone?

How can I watch https://www.facebook.com/...rmiesMovie on my Iphone? Watching videos on mobile is very popular and i see almost everyone has an iPhone today. But i don't know how i can do this on my iPhone?

*face palm*

The movie hasn't even come out yet dude. Not until mid-December. And when it DOES, just watch it in theaters.