HBO has released a few new behind-the-scenes and bonus videos. First, two Anatomy of a Scene vids that breakdown what went into the filming of a particular scene. In this case, they are analyzing two scenes from episode 11, the Burning of the Seven and Tyrion crashing the Small Council.
The last video provides more background info on the four dominant religions of Westeros, as told by George R. R. Martin.
Winter Is Coming: Cool vids! I especially liked the religions video. The religions play an increasing part in the story going forward, so it is good to get the audience familiar with them now.