Minecraft's coming out for real soon (November 18, to be exact) and Notch and the folks at Mojang will be having a grand party in Las Vegas to celebrate. As happens at such things, videos of all sorts will be rolling out amongst the merriment and H.A.T. Films will be producing the official trailer for the Minecon event.
They're offering folks who subscribe to their YouTube page the chance to have their skin appear in the trailer, immortalising the winners as Minecraft legends forever. Or, for the duration of Minecon, at least.
Minecraft Trailer Competition [YouTube]