Crakehall, a member of the A Song of Ice and Fire forum, provides a gripping series of bits of news, one of the first reports we’ve had from Doune today. You can start finding his posts here. Among the tidbits: over a 100 extras in costume, a well-known medieval music troupe from Germany performing at the feast scene, a number of the actors on set, GRRM has filmed his cameo, and the costuming is amazing.
Crakehall also shares a photograph here, with George R.R. Martin and his partner Parris outside of the castle.