Since it's recently been confirmed that James Cameron has helped Guillermo del Toro to get his 'AT THE MOUNTAINS OF MADNESS' H.P. Lovecraft project started...here's a little fanedited trailer I came across a while back, which I thought was nicely atmospheric...

AT THE MOUNTAINS OF MADNESS Fanedited Trailer - http://www.youtube.com/watch?v=vw3tuiND_xk

Coming Soon... Guillermo del Toro's 'AT THE MOUNTAINS OF MADNESS' is in early development for release in 2013...

*UPDATE* - Unfortunately, 'Universal' have now passed up on this opportunity, it seems... :(