I haven't really used this section of MMOwned before, however there is a new scam out (but doesn't seem to be commonly in use).
I can predict that it will become increasingly more popular.
It is basically a scam where by the person whispers you or says in trade: "Go see previews of the new World of Warcraft movie coming out! Current customers only!"
They then direct you to a website where you are required to "log-in" so that they can verify that you are indeed a current World of Warcraft player and then give you some crappy Youtube vid with fake "trailers".